The version of AIX installed on the remote host is prior to APAR IJ58124. It is, therefore, affected by multiple vulnerabilities as referenced in the IJ58124 advisory.

  - A flaw was found in libxml2. This vulnerability occurs when the library processes a specially crafted XML     Schema Definition (XSD) validated document that includes an internal entity reference. An attacker could     exploit this by providing a malicious document, leading to a type confusion error that causes the     application to crash. This results in a denial of service (DoS), making the affected system or application     unavailable. (CVE-2026-6732)

  - A flaw was identified in the RelaxNG parser of libxml2 related to how external schema inclusions are     handled. The parser does not enforce a limit on inclusion depth when resolving nested <include>     directives. Specially crafted or overly complex schemas can cause excessive recursion during parsing. This     may lead to stack exhaustion and application crashes, creating a denial-of-service risk. (CVE-2026-0989)

  - A flaw was found in libxml2, an XML parsing library. This uncontrolled recursion vulnerability occurs in     the xmlCatalogXMLResolveURI function when an XML catalog contains a delegate URI entry that references     itself. A remote attacker could exploit this configuration-dependent issue by providing a specially     crafted XML catalog, leading to infinite recursion and call stack exhaustion. This ultimately results in a     segmentation fault, causing a Denial of Service (DoS) by crashing affected applications. (CVE-2026-0990)

  - A flaw was found in the libxml2 library. This uncontrolled resource consumption vulnerability occurs when     processing XML catalogs that contain repeated <nextCatalog> elements pointing to the same downstream     catalog. A remote attacker can exploit this by supplying crafted catalogs, causing the parser to     redundantly traverse catalog chains. This leads to excessive CPU consumption and degrades application     availability, resulting in a denial-of-service condition. (CVE-2026-0992)

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 AIX installed on the remote host is prior to APAR IJ58140. It is, therefore, affected by multiple vulnerabilities as referenced in the IJ58140 advisory.

  - A flaw was found in libxml2. This vulnerability occurs when the library processes a specially crafted XML     Schema Definition (XSD) validated document that includes an internal entity reference. An attacker could     exploit this by providing a malicious document, leading to a type confusion error that causes the     application to crash. This results in a denial of service (DoS), making the affected system or application     unavailable. (CVE-2026-6732)

  - A flaw was identified in the RelaxNG parser of libxml2 related to how external schema inclusions are     handled. The parser does not enforce a limit on inclusion depth when resolving nested <include>     directives. Specially crafted or overly complex schemas can cause excessive recursion during parsing. This     may lead to stack exhaustion and application crashes, creating a denial-of-service risk. (CVE-2026-0989)

  - A flaw was found in libxml2, an XML parsing library. This uncontrolled recursion vulnerability occurs in     the xmlCatalogXMLResolveURI function when an XML catalog contains a delegate URI entry that references     itself. A remote attacker could exploit this configuration-dependent issue by providing a specially     crafted XML catalog, leading to infinite recursion and call stack exhaustion. This ultimately results in a     segmentation fault, causing a Denial of Service (DoS) by crashing affected applications. (CVE-2026-0990)

  - A flaw was found in the libxml2 library. This uncontrolled resource consumption vulnerability occurs when     processing XML catalogs that contain repeated <nextCatalog> elements pointing to the same downstream     catalog. A remote attacker can exploit this by supplying crafted catalogs, causing the parser to     redundantly traverse catalog chains. This leads to excessive CPU consumption and degrades application     availability, resulting in a denial-of-service condition. (CVE-2026-0992)

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

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1396 advisory.

    A flaw was found in libxml2, an XML parsing library. This uncontrolled recursion vulnerability occurs in     the xmlCatalogXMLResolveURI function when an XML catalog contains a delegate URI entry that references     itself. A remote attacker could exploit this configuration-dependent issue by providing a specially     crafted XML catalog, leading to infinite recursion and call stack exhaustion. This ultimately results in a     segmentation fault, causing a Denial of Service (DoS) by crashing affected applications. (CVE-2026-0990)

    A flaw was found in the libxml2 library. This uncontrolled resource consumption vulnerability occurs when     processing XML catalogs that contain repeated <nextCatalog> elements pointing to the same downstream     catalog. A remote attacker can exploit this by supplying crafted catalogs, causing the parser to     redundantly traverse catalog chains. This leads to excessive CPU consumption and degrades application     availability, resulting in a denial-of-service condition. (CVE-2026-0992)

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.

According to the versions of the libxml2 packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

    A flaw was identified in the interactive shell of the xmllint utility, part of the libxml2 project, where     memory allocated for user input is not properly released under certain conditions. When a user submits     input consisting only of whitespace, the program skips command execution but fails to free the allocated     buffer. Repeating this action causes memory to continuously accumulate. Over time, this can exhaust system     memory and terminate the xmllint process, creating a denial-of-service condition on the local     system.(CVE-2026-1757)

    A flaw was found in the libxml2 library. This uncontrolled resource consumption vulnerability occurs when     processing XML catalogs that contain repeated nextCatalog elements pointing to the same downstream     catalog. A remote attacker can exploit this by supplying crafted catalogs, causing the parser to     redundantly traverse catalog chains. This leads to excessive CPU consumption and degrades application     availability, resulting in a denial-of-service condition.(CVE-2026-0992)

    A flaw was found in libxml2, an XML parsing library. This uncontrolled recursion vulnerability occurs in     the xmlCatalogXMLResolveURI function when an XML catalog contains a delegate URI entry that references     itself. A remote attacker could exploit this configuration-dependent issue by providing a specially     crafted XML catalog, leading to infinite recursion and call stack exhaustion. This ultimately results in a     segmentation fault, causing a Denial of Service (DoS) by crashing affected applications.(CVE-2026-0990)

    A flaw was identified in the RelaxNG parser of libxml2 related to how external schema inclusions are     handled. The parser does not enforce a limit on inclusion depth when resolving nested include     directives. Specially crafted or overly complex schemas can cause excessive recursion during parsing. This     may lead to stack exhaustion and application crashes, creating a denial-of-service risk.(CVE-2026-0989)

Tenable has extracted the preceding description block directly from the EulerOS Virtualization libxml2 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 openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:0570-1 advisory.

    - CVE-2026-0990: Fixed a call stack overflow leading to application crash due to infinite recursion in     `xmlCatalogXMLResolveURI`. (bsc#1256807, bsc#1256811)
    - CVE-2026-0992: Fixed an excessive resource consumption when processing XML catalogs due to exponential     behavior. (bsc#1256809, bsc#1256812)
    - CVE-2026-1757: Fixed a memory leak in the `xmllint` interactive shell. (bsc#1257594, bsc#1257595)
    - CVE-2025-10911: Fixed a use-after-free with key data stored cross-RVT. (bsc#1250553)
    - CVE-2025-8732: Fixed an infinite recursion in catalog parsing functions when processing malformed SGML     catalog files. (bsc#1247858)

Tenable has extracted the preceding description block directly from the SUSE 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 SUSE Linux SLES16 / SLES_SAP16 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:20631-1 advisory.

    Changes in libxml2:

    - CVE-2026-0990: call stack overflow may lead to application crash due to infinite recursion in       `xmlCatalogXMLResolveURI` (bsc#1256807, bsc#1256811).
    - CVE-2026-0992: excessive resource consumption when processing XML catalogs due to exponential behavior     when handling       `nextCatalog` elements (bsc#1256809, bsc#1256812).
    - CVE-2025-8732: infinite recursion in catalog parsing functions when processing malformed SGML catalog     files       (bsc#1247858).
    - CVE-2026-1757: memory leak in the `xmllint` interactive shell (bsc#1257594, bsc#1257595).
    - CVE-2025-10911: parsing xsl nodes may lead to use-after-free with key data stored cross-RVT     (bsc#1250553)

Tenable has extracted the preceding description block directly from the SUSE 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 libxml2 installed on the remote host is prior to 2.9.1-6. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2026-3144 advisory.

    A flaw was found in libxml2, an XML parsing library. This uncontrolled recursion vulnerability occurs in     the xmlCatalogXMLResolveURI function when an XML catalog contains a delegate URI entry that references     itself. A remote attacker could exploit this configuration-dependent issue by providing a specially     crafted XML catalog, leading to infinite recursion and call stack exhaustion. This ultimately results in a     segmentation fault, causing a Denial of Service (DoS) by crashing affected applications. (CVE-2026-0990)

    A flaw was found in the libxml2 library. This uncontrolled resource consumption vulnerability occurs when     processing XML catalogs that contain repeated <nextCatalog> elements pointing to the same downstream     catalog. A remote attacker can exploit this by supplying crafted catalogs, causing the parser to     redundantly traverse catalog chains. This leads to excessive CPU consumption and degrades application     availability, resulting in a denial-of-service condition. (CVE-2026-0992)

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 AIX installed on the remote host is prior to APAR IJ58122. It is, therefore, affected by multiple vulnerabilities as referenced in the IJ58122 advisory.

  - A flaw was found in libxml2. This vulnerability occurs when the library processes a specially crafted XML     Schema Definition (XSD) validated document that includes an internal entity reference. An attacker could     exploit this by providing a malicious document, leading to a type confusion error that causes the     application to crash. This results in a denial of service (DoS), making the affected system or application     unavailable. (CVE-2026-6732)

  - A flaw was identified in the RelaxNG parser of libxml2 related to how external schema inclusions are     handled. The parser does not enforce a limit on inclusion depth when resolving nested <include>     directives. Specially crafted or overly complex schemas can cause excessive recursion during parsing. This     may lead to stack exhaustion and application crashes, creating a denial-of-service risk. (CVE-2026-0989)

  - A flaw was found in libxml2, an XML parsing library. This uncontrolled recursion vulnerability occurs in     the xmlCatalogXMLResolveURI function when an XML catalog contains a delegate URI entry that references     itself. A remote attacker could exploit this configuration-dependent issue by providing a specially     crafted XML catalog, leading to infinite recursion and call stack exhaustion. This ultimately results in a     segmentation fault, causing a Denial of Service (DoS) by crashing affected applications. (CVE-2026-0990)

  - A flaw was found in the libxml2 library. This uncontrolled resource consumption vulnerability occurs when     processing XML catalogs that contain repeated <nextCatalog> elements pointing to the same downstream     catalog. A remote attacker can exploit this by supplying crafted catalogs, causing the parser to     redundantly traverse catalog chains. This leads to excessive CPU consumption and degrades application     availability, resulting in a denial-of-service condition. (CVE-2026-0992)

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 libxml2 package has been released.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - A flaw was found in the libxml2 library. This uncontrolled resource consumption vulnerability occurs when     processing XML catalogs that contain repeated <nextCatalog> elements pointing to the same downstream     catalog. A remote attacker can exploit this by supplying crafted catalogs, causing the parser to     redundantly traverse catalog chains. This leads to excessive CPU consumption and degrades application     availability, resulting in a denial-of-service condition. (CVE-2026-0992)

Note that Nessus relies on the presence of the package as reported by the vendor.

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:0605-1 advisory.

    - CVE-2026-0990: Fixed a call stack overflow leading to application crash due to infinite recursion in     `xmlCatalogXMLResolveURI`. (bsc#1256807, bsc#1256811)
    - CVE-2026-0992: Fixed an excessive resource consumption when processing XML catalogs due to exponential     behavior. (bsc#1256809, bsc#1256812)
    - CVE-2026-1757: Fixed a memory leak in the `xmllint` interactive shell. (bsc#1257594, bsc#1257595)
    - CVE-2025-10911: Fixed a use-after-free with key data stored cross-RVT. (bsc#1250553)
    - CVE-2025-8732: Fixed an infinite recursion in catalog parsing functions when processing malformed SGML     catalog files. (bsc#1247858)
    - CVE-2026-0989: Fixe a call stack exhaustion leading to application crash due to RelaxNG parser not     limiting the recursion depth. (bsc#1256805, bsc#1256810)

Tenable has extracted the preceding description block directly from the SUSE 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 openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:20312-1 advisory.

    Changes in libxml2:

    - CVE-2026-0990: call stack overflow may lead to application crash due to infinite recursion in       `xmlCatalogXMLResolveURI` (bsc#1256807, bsc#1256811).
    - CVE-2026-0992: excessive resource consumption when processing XML catalogs due to exponential behavior     when handling       `nextCatalog` elements (bsc#1256809, bsc#1256812).
    - CVE-2025-8732: infinite recursion in catalog parsing functions when processing malformed SGML catalog     files       (bsc#1247858).
    - CVE-2026-1757: memory leak in the `xmllint` interactive shell (bsc#1257594, bsc#1257595).
    - CVE-2025-10911: parsing xsl nodes may lead to use-after-free with key data stored cross-RVT     (bsc#1250553)

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

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
318323	AIX : Multiple Vulnerabilities (IJ58124)	Nessus	AIX Local Security Checks	2026/6/3	2026/6/5	high
318324	AIX : Multiple Vulnerabilities (IJ58140)	Nessus	AIX Local Security Checks	2026/6/3	2026/6/5	high
298081	Amazon Linux 2023 : libxml2, libxml2-devel, libxml2-static (ALAS2023-2026-1396)	Nessus	Amazon Linux Local Security Checks	2026/2/5	2026/2/5	medium
319456	EulerOS Virtualization 2.13.1 : libxml2 (EulerOS-SA-2026-2139)	Nessus	Huawei Local Security Checks	2026/6/6	2026/8/26	medium
299578	openSUSE 15: libxml2-2 / libxml2-2-32bit / libxml2-devel / libxml2-devel-32bit / etc (SUSE-SU-2026:0570-1)	Nessus	SuSE Local Security Checks	2026/2/19	2026/6/26	medium
301455	SUSE SLES16 Security Update : libxml2, libxslt (SUSE-SU-2026:20631-1)	Nessus	SuSE Local Security Checks	2026/3/7	2026/4/16	medium
298135	Amazon Linux 2 : libxml2, --advisory ALAS2-2026-3144 (ALAS-2026-3144)	Nessus	Amazon Linux Local Security Checks	2026/2/5	2026/2/5	medium
318321	AIX : Multiple Vulnerabilities (IJ58122)	Nessus	AIX Local Security Checks	2026/6/3	2026/6/5	high
333910	Photon OS 5.0: Libxml2 PHSA-2026-5.0-91-0874	Nessus	PhotonOS Local Security Checks	2026/8/10	2026/8/10	medium
286281	Linux Distros Unpatched Vulnerability : CVE-2026-0992	Nessus	Misc.	2026/1/15	2026/8/21	low
300043	SUSE SLED15 / SLES15 Security Update : libxml2 (SUSE-SU-2026:0605-1)	Nessus	SuSE Local Security Checks	2026/2/26	2026/4/22	medium
301309	openSUSE 16 Security Update : libxml2, libxslt (openSUSE-SU-2026:20312-1)	Nessus	SuSE Local Security Checks	2026/3/6	2026/4/16	medium

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