The version of Firefox ESR installed on the remote Windows host is prior to 115.0.2. It is, therefore, affected by a vulnerability as referenced in the mfsa2023-26 advisory.

  - During the worker lifecycle, a use-after-free condition could have occurred, which could have led to a     potentially exploitable crash. (CVE-2023-3600)

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

The remote Ubuntu 20.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-6218-1 advisory.

    A use-after-free was discovered in Firefox when handling workers. An attacker could potentially exploit     this to cause a denial of service, or execute arbitrary code.

Tenable has extracted the preceding description block directly from the Ubuntu 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 CentOS Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the CESA-2023:5433 advisory.

  - During the worker lifecycle, a use-after-free condition could have occured, which could have led to a     potentially exploitable crash. This vulnerability affects Firefox < 115.0.2, Firefox ESR < 115.0.2, and     Thunderbird < 115.0.1. (CVE-2023-3600)

  - A compromised content process could have provided malicious data in a `PathRecording` resulting in an out-     of-bounds write, leading to a potentially exploitable crash in a privileged process. This vulnerability     affects Firefox < 118, Firefox ESR < 115.3, and Thunderbird < 115.3. (CVE-2023-5169)

  - During Ion compilation, a Garbage Collection could have resulted in a use-after-free condition, allowing     an attacker to write two NUL bytes, and cause a potentially exploitable crash. This vulnerability affects     Firefox < 118, Firefox ESR < 115.3, and Thunderbird < 115.3. (CVE-2023-5171)

  - Memory safety bugs present in Firefox 117, Firefox ESR 115.2, and Thunderbird 115.2. Some of these bugs     showed evidence of memory corruption and we presume that with enough effort some of these could have been     exploited to run arbitrary code. This vulnerability affects Firefox < 118, Firefox ESR < 115.3, and     Thunderbird < 115.3. (CVE-2023-5176)

  - Heap buffer overflow in vp8 encoding in libvpx in Google Chrome prior to 117.0.5938.132 and libvpx 1.13.1     allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium     security severity: High) (CVE-2023-5217)

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 a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2023:5436 advisory.

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

    This update upgrades Firefox to version 115.3.1 ESR.

    Security Fix(es):

    * firefox: use-after-free in workers (CVE-2023-3600)

    * Mozilla: Out-of-bounds write in PathOps (CVE-2023-5169)

    * Mozilla: Use-after-free in Ion Compiler (CVE-2023-5171)

    * Mozilla: Memory safety bugs fixed in Firefox 118, Firefox ESR 115.3, and Thunderbird 115.3     (CVE-2023-5176)

    * libvpx: Heap buffer overflow in vp8 encoding in libvpx (CVE-2023-5217)

    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 Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2023:5430 advisory.

    Mozilla Thunderbird is a standalone mail and newsgroup client.

    This update upgrades Thunderbird to version 115.3.1.

    Security Fix(es):

    * firefox: use-after-free in workers (CVE-2023-3600)

    * Mozilla: Out-of-bounds write in PathOps (CVE-2023-5169)

    * Mozilla: Use-after-free in Ion Compiler (CVE-2023-5171)

    * Mozilla: Memory safety bugs fixed in Firefox 118, Firefox ESR 115.3, and Thunderbird 115.3     (CVE-2023-5176)

    * libvpx: Heap buffer overflow in vp8 encoding in libvpx (CVE-2023-5217)

    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 Redhat Enterprise Linux 7 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2023:5477 advisory.

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

    This update upgrades Firefox to version 115.3.1 ESR.

    Security Fix(es):

    * firefox: use-after-free in workers (CVE-2023-3600)

    * Mozilla: Out-of-bounds write in PathOps (CVE-2023-5169)

    * Mozilla: Use-after-free in Ion Compiler (CVE-2023-5171)

    * Mozilla: Memory safety bugs fixed in Firefox 118, Firefox ESR 115.3, and Thunderbird 115.3     (CVE-2023-5176)

    * libvpx: Heap buffer overflow in vp8 encoding in libvpx (CVE-2023-5217)

    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 Redhat Enterprise Linux 7 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2023:5475 advisory.

    Mozilla Thunderbird is a standalone mail and newsgroup client.

    This update upgrades Thunderbird to version 115.3.1.

    Security Fix(es):

    * firefox: use-after-free in workers (CVE-2023-3600)

    * Mozilla: Out-of-bounds write in PathOps (CVE-2023-5169)

    * Mozilla: Use-after-free in Ion Compiler (CVE-2023-5171)

    * Mozilla: Memory safety bugs fixed in Firefox 118, Firefox ESR 115.3, and Thunderbird 115.3     (CVE-2023-5176)

    * libvpx: Heap buffer overflow in vp8 encoding in libvpx (CVE-2023-5217)

    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 NewStart CGSL host, running version MAIN 7.02, has firefox packages installed that are affected by multiple vulnerabilities:

  - Integer overflow in libaom internal function img_alloc_helper can lead to heap buffer overflow. This     function can be reached via 3 callers: * Calling aom_img_alloc() with a large value of the d_w, d_h, or     align parameter may result in integer overflows in the calculations of buffer sizes and offsets and some     fields of the returned aom_image_t struct may be invalid. * Calling aom_img_wrap() with a large value of     the d_w, d_h, or align parameter may result in integer overflows in the calculations of buffer sizes and     offsets and some fields of the returned aom_image_t struct may be invalid. * Calling     aom_img_alloc_with_border() with a large value of the d_w, d_h, align, size_align, or border parameter may     result in integer overflows in the calculations of buffer sizes and offsets and some fields of the     returned aom_image_t struct may be invalid. (CVE-2024-5171)

  - A type checking bug would have led to invalid code being compiled. This vulnerability affects Firefox <     113, Firefox ESR < 102.11, and Thunderbird < 102.11. (CVE-2023-32211)

  - An attacker could have positioned a `datalist` element to obscure the address bar. This vulnerability     affects Firefox < 113, Firefox ESR < 102.11, and Thunderbird < 102.11. (CVE-2023-32212)

  - When reading a file, an uninitialized value could have been used as read limit. This vulnerability affects     Firefox < 113, Firefox ESR < 102.11, and Thunderbird < 102.11. (CVE-2023-32213)

  - During the worker lifecycle, a use-after-free condition could have occured, which could have led to a     potentially exploitable crash. This vulnerability affects Firefox < 115.0.2, Firefox ESR < 115.0.2, and     Thunderbird < 115.0.1. (CVE-2023-3600)

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:2023-6492:28 advisory.

    * firefox: use-after-free in workers (CVE-2023-3600)
      * Mozilla: Out-of-bounds write in PathOps (CVE-2023-5169)
      * Mozilla: Use-after-free in Ion Compiler (CVE-2023-5171)
      * Mozilla: Memory safety bugs fixed in Firefox 118, Firefox ESR 115.3, and Thunderbird 115.3     (CVE-2023-5176)
      * libvpx: Heap buffer overflow in vp8 encoding in libvpx (CVE-2023-5217)

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 MiracleLinux 7 host has a package installed that is affected by multiple vulnerabilities as referenced in the AXSA:2023-6514:39 advisory.

    * firefox: use-after-free in workers (CVE-2023-3600)
      * Mozilla: Out-of-bounds write in PathOps (CVE-2023-5169)
      * Mozilla: Use-after-free in Ion Compiler (CVE-2023-5171)
      * Mozilla: Memory safety bugs fixed in Firefox 118, Firefox ESR 115.3, and Thunderbird 115.3     (CVE-2023-5176)
      * libvpx: Heap buffer overflow in vp8 encoding in libvpx (CVE-2023-5217)

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.

ID	Name	Product	Family	Published	Updated	Severity
178146	Mozilla Firefox ESR < 115.0.2	Nessus	Windows	7/11/2023	12/18/2025	high
178207	Ubuntu 20.04 LTS : Firefox vulnerability (USN-6218-1)	Nessus	Ubuntu Local Security Checks	7/12/2023	8/27/2024	high
190211	CentOS 8 : firefox (CESA-2023:5433)	Nessus	CentOS Local Security Checks	2/8/2024	2/8/2024	critical
190759	GLSA-202402-25 : Mozilla Thunderbird: Multiple Vulnerabilities	Nessus	Gentoo Local Security Checks	2/20/2024	2/20/2024	critical
182539	RHEL 8 : firefox (RHSA-2023:5436)	Nessus	Red Hat Local Security Checks	10/4/2023	11/7/2024	critical
182553	RHEL 8 : thunderbird (RHSA-2023:5430)	Nessus	Red Hat Local Security Checks	10/4/2023	11/7/2024	critical
182594	RHEL 7 : firefox (RHSA-2023:5477)	Nessus	Red Hat Local Security Checks	10/5/2023	11/7/2024	critical
182623	RHEL 7 : thunderbird (RHSA-2023:5475)	Nessus	Red Hat Local Security Checks	10/5/2023	11/7/2024	critical
242713	NewStart CGSL MAIN 7.02 : firefox Multiple Vulnerabilities (NS-SA-2025-0109)	Nessus	NewStart CGSL Local Security Checks	7/25/2025	7/25/2025	critical
292894	MiracleLinux 9 : thunderbird-115.3.1-1.el9.ML.1 (AXSA:2023-6492:28)	Nessus	Miracle Linux Local Security Checks	1/20/2026	1/20/2026	critical
293509	MiracleLinux 7 : firefox-115.3.1-1.0.1.el7.AXS7 (AXSA:2023-6514:39)	Nessus	Miracle Linux Local Security Checks	1/20/2026	1/20/2026	critical

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