The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:3577 advisory.

    The libpng packages contain a library of functions for creating and manipulating Portable Network Graphics     (PNG) image format files.

    Security Fix(es):

    * libpng: libpng: Information disclosure and denial of service via integer truncation in simplified write     API (CVE-2026-22801)

    * libpng: libpng: Denial of service and information disclosure via heap buffer over-read in     png_image_finish_read (CVE-2026-22695)

    * libpng: LIBPNG has a heap buffer overflow in png_set_quantize (CVE-2026-25646)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-005396 advisory.

    LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable     Network Graphics) raster image files. From 1.6.26 to 1.6.53, there is an integer truncation in the libpng     simplified write API functions png_write_image_16bit and png_write_image_8bit causes heap buffer over-read     when the caller provides a negative row stride (for bottom-up image layouts) or a stride exceeding 65535     bytes. The bug was introduced in libpng 1.6.26 (October 2016) by casts added to silence compiler warnings     on 16-bit systems. This vulnerability is fixed in 1.6.54.

Tenable has extracted the preceding description block directly from the Unity Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote MiracleLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2026-246:05 advisory.

    * libpng: libpng: Information disclosure and denial of service via integer truncation in simplified write     API (CVE-2026-22801)
      * libpng: libpng: Denial of service and information disclosure via heap buffer over-read in     png_image_finish_read (CVE-2026-22695)
      * libpng: LIBPNG has a heap buffer overflow in png_set_quantize (CVE-2026-25646)

Tenable has extracted the preceding description block directly from the MiracleLinux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

An update of the libpng package has been released.

The remote AlmaLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:3551 advisory.

    * libpng: libpng: Information disclosure and denial of service via integer truncation in simplified write     API (CVE-2026-22801)
      * libpng: libpng: Denial of service and information disclosure via heap buffer over-read in     png_image_finish_read (CVE-2026-22695)
      * libpng: LIBPNG has a heap buffer overflow in png_set_quantize (CVE-2026-25646)

Tenable has extracted the preceding description block directly from the AlmaLinux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

According to the versions of the libpng package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

    LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable     Network Graphics) raster image files. Prior to version 1.6.51, a heap buffer over-read vulnerability     exists in libpng's png_do_quantize function when processing PNG files with malformed palette indices. The     vulnerability occurs when palette_lookup array bounds are not validated against externally-supplied image     data, allowing an attacker to craft a PNG file with out-of-range palette indices that trigger out-of-     bounds memory access. This issue has been patched in version 1.6.51.(CVE-2025-64505)

    LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable     Network Graphics) raster image files. From version 1.6.0 to before 1.6.51, a heap buffer over-read     vulnerability exists in libpng's png_write_image_8bit function when processing 8-bit images through the     simplified write API with convert_to_8bit enabled. The vulnerability affects 8-bit grayscale+alpha,     RGB/RGBA, and images with incomplete row data. A conditional guard incorrectly allows 8-bit input to enter     code expecting 16-bit input, causing reads up to 2 bytes beyond allocated buffer boundaries. This issue     has been patched in version 1.6.51.(CVE-2025-64506)

    LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable     Network Graphics) raster image files. Prior to 1.6.52, an out-of-bounds read vulnerability in libpng's     simplified API allows reading up to 1012 bytes beyond the png_sRGB_base[512] array when processing valid     palette PNG images with partial transparency and gamma correction. The PNG files that trigger this     vulnerability are valid per the PNG specification; the bug is in libpng's internal state management.
    Upgrade to libpng 1.6.52 or later.(CVE-2025-66293)

    LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable     Network Graphics) raster image files. From 1.6.51 to 1.6.53, there is a heap buffer over-read in the     libpng simplified API function png_image_finish_read when processing interlaced 16-bit PNGs with 8-bit     output format and non-minimal row stride. This is a regression introduced by the fix for CVE-2025-65018.
    This vulnerability is fixed in 1.6.54.(CVE-2026-22695)

    LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable     Network Graphics) raster image files. From 1.6.26 to 1.6.53, there is an integer truncation in the libpng     simplified write API functions png_write_image_16bit and png_write_image_8bit causes heap buffer over-read     when the caller provides a negative row stride (for bottom-up image layouts) or a stride exceeding 65535     bytes. The bug was introduced in libpng 1.6.26 (October 2016) by casts added to silence compiler warnings     on 16-bit systems. This vulnerability is fixed in 1.6.54.(CVE-2026-22801)

    LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable     Network Graphics) raster image files. From version 1.6.0 to before 1.6.51, there is a heap buffer overflow     vulnerability in the libpng simplified API function png_image_finish_read when processing 16-bit     interlaced PNGs with 8-bit output format. Attacker-crafted interlaced PNG files cause heap writes beyond     allocated buffer bounds. This issue has been patched in version 1.6.51.(CVE-2025-65018)

    LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable     Network Graphics) raster image files. From version 1.6.0 to before 1.6.51, an out-of-bounds read     vulnerability exists in png_image_read_composite when processing palette images with     PNG_FLAG_OPTIMIZE_ALPHA enabled. The palette compositing code in png_init_read_transformations incorrectly     applies background compositing during premultiplication, violating the invariant component  alpha     257 required by the simplified PNG API. This issue has been patched in version 1.6.51.(CVE-2025-64720)

Tenable has extracted the preceding description block directly from the EulerOS Virtualization libpng security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:4730 advisory.

    The libpng packages contain a library of functions for creating and manipulating Portable Network Graphics     (PNG) image format files.

    Security Fix(es):

    * libpng: libpng: Information disclosure and denial of service via integer truncation in simplified write     API (CVE-2026-22801)

    * libpng: libpng: Denial of service and information disclosure via heap buffer over-read in     png_image_finish_read (CVE-2026-22695)

    * libpng: LIBPNG has a heap buffer overflow in png_set_quantize (CVE-2026-25646)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007289 advisory.

    LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable     Network Graphics) raster image files. From 1.6.26 to 1.6.53, there is an integer truncation in the libpng     simplified write API functions png_write_image_16bit and png_write_image_8bit causes heap buffer over-read     when the caller provides a negative row stride (for bottom-up image layouts) or a stride exceeding 65535     bytes. The bug was introduced in libpng 1.6.26 (October 2016) by casts added to silence compiler warnings     on 16-bit systems. This vulnerability is fixed in 1.6.54.

Tenable has extracted the preceding description block directly from the Unity Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The version of AOS installed on the remote host is prior to 7.3.1.7. It is, therefore, affected by multiple vulnerabilities as referenced in the NXSA-AOS-7.3.1.7 advisory.

  - LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable     Network Graphics) raster image files. Prior to 1.6.55, an out-of-bounds read vulnerability exists in the     png_set_quantize() API function. When the function is called with no histogram and the number of colors in     the palette is more than twice the maximum supported by the user's display, certain palettes will cause     the function to enter into an infinite loop that reads past the end of an internal heap-allocated buffer.
    The images that trigger this vulnerability are valid per the PNG specification. This vulnerability is     fixed in 1.6.55. (CVE-2026-25646)

  - Improper Input Validation vulnerability in Apache Tomcat Native, Apache Tomcat. When using an OCSP     responder, Tomcat Native (and Tomcat's FFM port of the Tomcat Native code) did not complete verification     or freshness checks on the OCSP response which could allow certificate revocation to be bypassed. This     issue affects Apache Tomcat Native: from 1.3.0 through 1.3.4, from 2.0.0 through 2.0.11; Apache Tomcat:
    from 11.0.0-M1 through 11.0.17, from 10.1.0-M7 through 10.1.51, from 9.0.83 through 9.0.114. The following     versions were EOL at the time the CVE was created but are known to be affected: from 1.1.23 through     1.1.34, from 1.2.0 through 1.2.39. Older EOL versions are not affected. Apache Tomcat Native users are     recommended to upgrade to versions 1.3.5 or later or 2.0.12 or later, which fix the issue. Apache Tomcat     users are recommended to upgrade to versions 11.0.18 or later, 10.1.52 or later or 9.0.115 or later which     fix the issue. (CVE-2026-24734)

  - Issue summary: Calling PKCS12_get_friendlyname() function on a maliciously crafted PKCS#12 file with a     BMPString (UTF-16BE) friendly name containing non-ASCII BMP code point can trigger a one byte write before     the allocated buffer. Impact summary: The out-of-bounds write can cause a memory corruption which can have     various consequences including a Denial of Service. The OPENSSL_uni2utf8() function performs a two-pass     conversion of a PKCS#12 BMPString (UTF-16BE) to UTF-8. In the second pass, when emitting UTF-8 bytes, the     helper function bmp_to_utf8() incorrectly forwards the remaining UTF-16 source byte count as the     destination buffer capacity to UTF8_putc(). For BMP code points above U+07FF, UTF-8 requires three bytes,     but the forwarded capacity can be just two bytes. UTF8_putc() then returns -1, and this negative value is     added to the output length without validation, causing the length to become negative. The subsequent     trailing NUL byte is then written at a negative offset, causing write outside of heap allocated buffer.
    The vulnerability is reachable via the public PKCS12_get_friendlyname() API when parsing attacker-     controlled PKCS#12 files. While PKCS12_parse() uses a different code path that avoids this issue,     PKCS12_get_friendlyname() directly invokes the vulnerable function. Exploitation requires an attacker to     provide a malicious PKCS#12 file to be parsed by the application and the attacker can just trigger a one     zero byte write before the allocated buffer. For that reason the issue was assessed as Low severity     according to our Security Policy. The FIPS modules in 3.6, 3.5, 3.4, 3.3 and 3.0 are not affected by this     issue, as the PKCS#12 implementation is outside the OpenSSL FIPS module boundary. OpenSSL 3.6, 3.5, 3.4,     3.3, 3.0 and 1.1.1 are vulnerable to this issue. OpenSSL 1.0.2 is not affected by this issue.
    (CVE-2025-69419)

  - Vim is an open source, command line text editor. Prior to version 9.1.2132, a heap buffer overflow     vulnerability exists in Vim's tag file resolution logic when processing the 'helpfile' option. The     vulnerability is located in the get_tagfname() function in src/tag.c. When processing help file tags, Vim     copies the user-controlled 'helpfile' option value into a fixed-size heap buffer of MAXPATHL + 1 bytes     (typically 4097 bytes) using an unsafe STRCPY() operation without any bounds checking. This issue has been     patched in version 9.1.2132. (CVE-2026-25749)

  - A Use-After-Free vulnerability has been discovered in GRUB's gettext module. This flaw stems from a     programming error where the gettext command remains registered in memory after its module is unloaded. An     attacker can exploit this condition by invoking the orphaned command, causing the application to access a     memory location that is no longer valid. An attacker could exploit this vulnerability to cause grub to     crash, leading to a Denial of Service. Possible data integrity or confidentiality compromise is not     discarded. (CVE-2025-61662)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of thunderbird installed on the remote host is prior to 140.7.1-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2026-3171 advisory.

    HarfBuzz is a text shaping engine. Prior to version 12.3.0, a null pointer dereference vulnerability     exists in the SubtableUnicodesCache::create function located in src/hb-ot-cmap-table.hh. The function     fails to check if hb_malloc returns NULL before using placement new to construct an object at the returned     pointer address. When hb_malloc fails to allocate memory (which can occur in low-memory conditions or when     using custom allocators that simulate allocation failures), it returns NULL. The code then attempts to     call the constructor on this null pointer using placement new syntax, resulting in undefined behavior and     a Segmentation Fault. This issue has been patched in version 12.3.0. (CVE-2026-22693)

    LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable     Network Graphics) raster image files. From 1.6.51 to 1.6.53, there is a heap buffer over-read in the     libpng simplified API function png_image_finish_read when processing interlaced 16-bit PNGs with 8-bit     output format and non-minimal row stride. This is a regression introduced by the fix for CVE-2025-65018.
    This vulnerability is fixed in 1.6.54. (CVE-2026-22695)

    LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable     Network Graphics) raster image files. From 1.6.26 to 1.6.53, there is an integer truncation in the libpng     simplified write API functions png_write_image_16bit and png_write_image_8bit causes heap buffer over-read     when the caller provides a negative row stride (for bottom-up image layouts) or a stride exceeding 65535     bytes. The bug was introduced in libpng 1.6.26 (October 2016) by casts added to silence compiler warnings     on 16-bit systems. This vulnerability is fixed in 1.6.54. (CVE-2026-22801)

    In libexpat before 2.7.4, the doContent function does not properly determine the buffer size bufSize     because there is no integer overflow check for tag buffer reallocation. (CVE-2026-25210)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of AOS installed on the remote host is prior to 7.5.1.2. It is, therefore, affected by multiple vulnerabilities as referenced in the NXSA-AOS-7.5.1.2 advisory.

  - LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable     Network Graphics) raster image files. Prior to 1.6.55, an out-of-bounds read vulnerability exists in the     png_set_quantize() API function. When the function is called with no histogram and the number of colors in     the palette is more than twice the maximum supported by the user's display, certain palettes will cause     the function to enter into an infinite loop that reads past the end of an internal heap-allocated buffer.
    The images that trigger this vulnerability are valid per the PNG specification. This vulnerability is     fixed in 1.6.55. (CVE-2026-25646)

  - Improper Input Validation vulnerability in Apache Tomcat Native, Apache Tomcat. When using an OCSP     responder, Tomcat Native (and Tomcat's FFM port of the Tomcat Native code) did not complete verification     or freshness checks on the OCSP response which could allow certificate revocation to be bypassed. This     issue affects Apache Tomcat Native: from 1.3.0 through 1.3.4, from 2.0.0 through 2.0.11; Apache Tomcat:
    from 11.0.0-M1 through 11.0.17, from 10.1.0-M7 through 10.1.51, from 9.0.83 through 9.0.114. The following     versions were EOL at the time the CVE was created but are known to be affected: from 1.1.23 through     1.1.34, from 1.2.0 through 1.2.39. Older EOL versions are not affected. Apache Tomcat Native users are     recommended to upgrade to versions 1.3.5 or later or 2.0.12 or later, which fix the issue. Apache Tomcat     users are recommended to upgrade to versions 11.0.18 or later, 10.1.52 or later or 9.0.115 or later which     fix the issue. (CVE-2026-24734)

  - Issue summary: Calling PKCS12_get_friendlyname() function on a maliciously crafted PKCS#12 file with a     BMPString (UTF-16BE) friendly name containing non-ASCII BMP code point can trigger a one byte write before     the allocated buffer. Impact summary: The out-of-bounds write can cause a memory corruption which can have     various consequences including a Denial of Service. The OPENSSL_uni2utf8() function performs a two-pass     conversion of a PKCS#12 BMPString (UTF-16BE) to UTF-8. In the second pass, when emitting UTF-8 bytes, the     helper function bmp_to_utf8() incorrectly forwards the remaining UTF-16 source byte count as the     destination buffer capacity to UTF8_putc(). For BMP code points above U+07FF, UTF-8 requires three bytes,     but the forwarded capacity can be just two bytes. UTF8_putc() then returns -1, and this negative value is     added to the output length without validation, causing the length to become negative. The subsequent     trailing NUL byte is then written at a negative offset, causing write outside of heap allocated buffer.
    The vulnerability is reachable via the public PKCS12_get_friendlyname() API when parsing attacker-     controlled PKCS#12 files. While PKCS12_parse() uses a different code path that avoids this issue,     PKCS12_get_friendlyname() directly invokes the vulnerable function. Exploitation requires an attacker to     provide a malicious PKCS#12 file to be parsed by the application and the attacker can just trigger a one     zero byte write before the allocated buffer. For that reason the issue was assessed as Low severity     according to our Security Policy. The FIPS modules in 3.6, 3.5, 3.4, 3.3 and 3.0 are not affected by this     issue, as the PKCS#12 implementation is outside the OpenSSL FIPS module boundary. OpenSSL 3.6, 3.5, 3.4,     3.3, 3.0 and 1.1.1 are vulnerable to this issue. OpenSSL 1.0.2 is not affected by this issue.
    (CVE-2025-69419)

  - In the Linux kernel, the following vulnerability has been resolved: crypto: algif_aead - Revert to     operating out-of-place This mostly reverts commit 72548b093ee3 except for the copying of the associated     data. There is no benefit in operating in-place in algif_aead since the source and destination come from     different mappings. Get rid of all the complexity added for in-place operation and just copy the AD     directly. (CVE-2026-31431)

  - Vim is an open source, command line text editor. Prior to version 9.1.2132, a heap buffer overflow     vulnerability exists in Vim's tag file resolution logic when processing the 'helpfile' option. The     vulnerability is located in the get_tagfname() function in src/tag.c. When processing help file tags, Vim     copies the user-controlled 'helpfile' option value into a fixed-size heap buffer of MAXPATHL + 1 bytes     (typically 4097 bytes) using an unsafe STRCPY() operation without any bounds checking. This issue has been     patched in version 9.1.2132. (CVE-2026-25749)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
300924	RHEL 10 : libpng (RHSA-2026:3577)	Nessus	Red Hat Local Security Checks	2026/3/5	2026/3/5	high
300987	Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: libpng (UTSA-2026-005396)	Nessus	Unity Linux Local Security Checks	2026/3/5	2026/3/5	high
301014	MiracleLinux 9 : libpng-1.6.37-12.el9_7.2 (AXSA:2026-246:05)	Nessus	Miracle Linux Local Security Checks	2026/3/5	2026/3/5	high
301077	Photon OS 4.0: Libpng PHSA-2026-4.0-0966	Nessus	PhotonOS Local Security Checks	2026/3/6	2026/4/30	high
301108	AlmaLinux 10 : libpng (ALSA-2026:3551)	Nessus	Alma Linux Local Security Checks	2026/3/6	2026/3/6	high
302559	EulerOS Virtualization 2.12.1 : libpng (EulerOS-SA-2026-1437)	Nessus	Huawei Local Security Checks	2026/3/16	2026/3/16	high
302797	RHEL 8 : libpng (RHSA-2026:4730)	Nessus	Red Hat Local Security Checks	2026/3/17	2026/3/17	high
306929	Unity Linux 20.1070a Security Update: libpng (UTSA-2026-007289)	Nessus	Unity Linux Local Security Checks	2026/4/17	2026/4/17	high
308349	Nutanix AOS : Multiple Vulnerabilities (NXSA-AOS-7.3.1.7)	Nessus	Misc.	2026/4/21	2026/4/21	high
299539	Amazon Linux 2 : thunderbird, --advisory ALAS2-2026-3171 (ALAS-2026-3171)	Nessus	Amazon Linux Local Security Checks	2026/2/19	2026/3/16	high
310779	Nutanix AOS : Multiple Vulnerabilities (NXSA-AOS-7.5.1.2)	Nessus	Misc.	2026/4/29	2026/5/11	high

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