The remote Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2026:19655 advisory.

    Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and     portability.

    Security Fix(es):

    * firefox: thunderbird: Incorrect boundary conditions in the Libraries component in NSS (CVE-2026-6772)

    * firefox: thunderbird: Use-after-free in the JavaScript Engine component (CVE-2026-6754)

    * firefox: thunderbird: Spoofing issue in the DOM: Core & HTML component (CVE-2026-6762)

    * firefox: thunderbird: Incorrect boundary conditions in the WebRTC component (CVE-2026-6752)

    * firefox: thunderbird: Other issue in the Storage: IndexedDB component (CVE-2026-6770)

    * firefox: thunderbird: Invalid pointer in the JavaScript: WebAssembly component (CVE-2026-6757)

    * firefox: thunderbird: Other issue in the Libraries component in NSS (CVE-2026-6767)

    * firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.10, Thunderbird ESR 140.10, Firefox     150 and Thunderbird 150 (CVE-2026-6786)

    * firefox: thunderbird: Incorrect boundary conditions in the WebRTC component (CVE-2026-6753)

    * firefox: thunderbird: Use-after-free in the Widget: Cocoa component (CVE-2026-6759)

    * firefox: thunderbird: Use-after-free in the WebRTC component (CVE-2026-6747)

    * firefox: thunderbird: Information disclosure due to uninitialized memory in the Graphics: Canvas2D     component (CVE-2026-6749)

    * firefox: thunderbird: Incorrect boundary conditions in the Libraries component in NSS (CVE-2026-6766)

    * firefox: thunderbird: Privilege escalation in the Networking component (CVE-2026-6761)

    * firefox: thunderbird: Mitigation bypass in the File Handling component (CVE-2026-6763)

    * firefox: thunderbird: Privilege escalation in the Graphics: WebRender component (CVE-2026-6750)

    * firefox: thunderbird: Uninitialized memory in the Audio/Video: Web Codecs component (CVE-2026-6748)

    * firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird     ESR 140.10, Firefox 150 and Thunderbird 150 (CVE-2026-6785)

    * firefox: thunderbird: Mitigation bypass in the DOM: Security component (CVE-2026-6771)

    * firefox: thunderbird: Incorrect boundary conditions in the DOM: Device Interfaces component     (CVE-2026-6764)

    * firefox: thunderbird: Information disclosure in the Form Autofill component (CVE-2026-6765)

    * firefox: thunderbird: Privilege escalation in the Debugger component (CVE-2026-6769)

    * firefox: thunderbird: Uninitialized memory in the Audio/Video: Web Codecs component (CVE-2026-6751)

    * firefox: thunderbird: Incorrect boundary conditions in the WebRTC: Networking component (CVE-2026-6776)

    * firefox: thunderbird: Use-after-free in the DOM: Core & HTML component (CVE-2026-6746)

    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 remote MiracleLinux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the AXSA:2026-1236:15 advisory.

    * firefox: thunderbird: Incorrect boundary conditions in the Libraries component in NSS (CVE-2026-6772)
      * firefox: thunderbird: Use-after-free in the JavaScript Engine component (CVE-2026-6754)
      * firefox: thunderbird: Spoofing issue in the DOM: Core & HTML component (CVE-2026-6762)
      * firefox: thunderbird: Incorrect boundary conditions in the WebRTC component (CVE-2026-6752)
      * firefox: thunderbird: Other issue in the Storage: IndexedDB component (CVE-2026-6770)
      * firefox: thunderbird: Invalid pointer in the JavaScript: WebAssembly component (CVE-2026-6757)
      * firefox: thunderbird: Other issue in the Libraries component in NSS (CVE-2026-6767)
      * firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.10, Thunderbird ESR 140.10, Firefox     150 and Thunderbird 150 (CVE-2026-6786)
      * firefox: thunderbird: Incorrect boundary conditions in the WebRTC component (CVE-2026-6753)
      * firefox: thunderbird: Use-after-free in the Widget: Cocoa component (CVE-2026-6759)
      * firefox: thunderbird: Use-after-free in the WebRTC component (CVE-2026-6747)
      * firefox: thunderbird: Information disclosure due to uninitialized memory in the Graphics: Canvas2D     component (CVE-2026-6749)
      * firefox: thunderbird: Incorrect boundary conditions in the Libraries component in NSS (CVE-2026-6766)
      * firefox: thunderbird: Privilege escalation in the Networking component (CVE-2026-6761)
      * firefox: thunderbird: Mitigation bypass in the File Handling component (CVE-2026-6763)
      * firefox: thunderbird: Privilege escalation in the Graphics: WebRender component (CVE-2026-6750)
      * firefox: thunderbird: Uninitialized memory in the Audio/Video: Web Codecs component (CVE-2026-6748)
      * firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird     ESR 140.10, Firefox 150 and Thunderbird 150 (CVE-2026-6785)
      * firefox: thunderbird: Mitigation bypass in the DOM: Security component (CVE-2026-6771)
      * firefox: thunderbird: Incorrect boundary conditions in the DOM: Device Interfaces component     (CVE-2026-6764)
      * firefox: thunderbird: Information disclosure in the Form Autofill component (CVE-2026-6765)
      * firefox: thunderbird: Privilege escalation in the Debugger component (CVE-2026-6769)
      * firefox: thunderbird: Uninitialized memory in the Audio/Video: Web Codecs component (CVE-2026-6751)
      * firefox: thunderbird: Incorrect boundary conditions in the WebRTC: Networking component     (CVE-2026-6776)
      * firefox: thunderbird: Use-after-free in the DOM: Core & HTML component (CVE-2026-6746)
      * firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.10.1 and Firefox 150.0.1     (CVE-2026-7323)
      * firefox: thunderbird: Information disclosure due to incorrect boundary conditions in the Audio/Video     component (CVE-2026-7320)
      * firefox: thunderbird: Memory safety bugs fixed in Thunderbird ESR 140.10.1 and Thunderbird 150.0.1     (CVE-2026-7322)
      * firefox: thunderbird: webrtc: Sandbox escape due to incorrect boundary conditions in the WebRTC:
    Networking component (CVE-2026-7321)

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.

The remote Oracle Linux 7 host has a package installed that is affected by multiple vulnerabilities as referenced in the ELSA-2026-19704 advisory.

    - Update to 140.10.0 ESR [Orabug: 39499844][CVE-2026-6746][CVE-2026-6747]       [CVE-2026-6748][CVE-2026-6749][CVE-2026-6750][CVE-2026-6751][CVE-2026-6752]       [CVE-2026-6753][CVE-2026-6754][CVE-2026-6757][CVE-2026-6759][CVE-2026-6761]       [CVE-2026-6762][CVE-2026-6763][CVE-2026-6764][CVE-2026-6765][CVE-2026-6766]       [CVE-2026-6767][CVE-2026-6769][CVE-2026-6770][CVE-2026-6771][CVE-2026-6772]       [CVE-2026-6776][CVE-2026-6785][CVE-2026-6786]
    - Update to 140.9.1 ESR [Orabug: 39324689][CVE-2026-5731][CVE-2026-5732]       [CVE-2026-5734][CVE-2026-33416][CVE-2026-33636]
    - Update to 140.9.0 ESR [Orabug: 39361657][CVE-2026-4684][CVE-2026-4685]       [CVE-2026-4686][CVE-2026-4687][CVE-2026-4688][CVE-2026-4689][CVE-2026-4690]       [CVE-2026-4691][CVE-2026-4692][CVE-2026-4693][CVE-2026-4694][CVE-2026-4695]       [CVE-2026-4696][CVE-2026-4697][CVE-2026-4698][CVE-2026-4699][CVE-2026-4700]       [CVE-2026-4701][CVE-2026-4702][CVE-2026-4704][CVE-2026-4705][CVE-2026-4706]       [CVE-2026-4707][CVE-2026-4708][CVE-2026-4709][CVE-2026-4710][CVE-2026-4711]       [CVE-2026-4712][CVE-2026-4713][CVE-2026-4714][CVE-2026-4715][CVE-2026-4716]       [CVE-2026-4717][CVE-2026-4718][CVE-2026-4719][CVE-2026-4720][CVE-2026-4721]
    - Update to 140.8.0 ESR [Orabug: 39361647][CVE-2026-2447][CVE-2026-2757]       [CVE-2026-2758][CVE-2026-2759][CVE-2026-2760][CVE-2026-2761][CVE-2026-2762]       [CVE-2026-2763][CVE-2026-2764][CVE-2026-2765][CVE-2026-2766][CVE-2026-2767]       [CVE-2026-2768][CVE-2026-2769][CVE-2026-2770][CVE-2026-2771][CVE-2026-2772]       [CVE-2026-2773][CVE-2026-2774][CVE-2026-2775][CVE-2026-2776][CVE-2026-2777]       [CVE-2026-2778][CVE-2026-2779][CVE-2026-2780][CVE-2026-2781][CVE-2026-2782]       [CVE-2026-2783][CVE-2026-2784][CVE-2026-2785][CVE-2026-2786][CVE-2026-2787]       [CVE-2026-2788][CVE-2026-2789][CVE-2026-2790][CVE-2026-2791][CVE-2026-2792]       [CVE-2026-2793]
    - Update to 140.7.0 ESR [Orabug: 38940976][CVE-2025-14327][CVE-2026-0877]       [CVE-2026-0878][CVE-2026-0879][CVE-2026-0880][CVE-2026-0882][CVE-2026-0883]       [CVE-2026-0884][CVE-2026-0885][CVE-2026-0886][CVE-2026-0887][CVE-2026-0890]       [CVE-2026-0891]
    - Update to 140.6.0 ESR [Orabug: 38813993][CVE-2025-14321][CVE-2025-14322]       [CVE-2025-14323][CVE-2025-14324][CVE-2025-14325][CVE-2025-14328]       [CVE-2025-14329][CVE-2025-14330][CVE-2025-14331][CVE-2025-14333]
    - Update to 140.5.0 ESR [Orabug: 38708474][CVE-2025-13012][CVE-2025-13013]       [CVE-2025-13014][CVE-2025-13015][CVE-2025-13016][CVE-2025-13017]       [CVE-2025-13018][CVE-2025-13019][CVE-2025-13020]
    - Update to 140.4.0 ESR [Orabug: 38595697][CVE-2025-11708][CVE-2025-11709]       [CVE-2025-11710][CVE-2025-11711][CVE-2025-11712][CVE-2025-11714]       [CVE-2025-11715]
    - Update to 140.3.0 [Orabug: 38509157][CVE-2025-10527][CVE-2025-10528]       [CVE-2025-10529][CVE-2025-10532][CVE-2025-10533][CVE-2025-10536]       [CVE-2025-10537]

Tenable has extracted the preceding description block directly from the Oracle 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.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
315932	RHEL 8 : firefox (RHSA-2026:19655)	Nessus	Red Hat Local Security Checks	2026/5/20	2026/5/20	critical
326294	MiracleLinux 9 : thunderbird-140.10.1-1.el9_8.ML.1 (AXSA:2026-1236:15)	Nessus	Miracle Linux Local Security Checks	2026/7/10	2026/7/10	critical
321178	Oracle Linux 7 : firefox (ELSA-2026-19704)	Nessus	Oracle Linux Local Security Checks	2026/6/16	2026/6/16	critical

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