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CVE-2023-5176 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CNA: CISA-ADPCVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1836353%2C1842674%2C1843824%2C1843962%2C1848890%2C1850180%2C1850983%2C1851195	CVE	Broken LinkIssue TrackingPermissions Required
https://lists.debian.org/debian-lts-announce/2023/09/msg00034.html	CVE	Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2023/10/msg00015.html	CVE	Mailing ListThird Party Advisory
https://www.debian.org/security/2023/dsa-5506	CVE	Third Party Advisory
https://www.debian.org/security/2023/dsa-5513	CVE	Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2023-41/	CVE	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-42/	CVE	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-43/	CVE	Vendor Advisory
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1836353%2C1842674%2C1843824%2C1843962%2C1848890%2C1850180%2C1850983%2C1851195	[email protected]	Broken LinkIssue TrackingPermissions Required
https://lists.debian.org/debian-lts-announce/2023/09/msg00034.html	[email protected]	Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2023/10/msg00015.html	[email protected]	Mailing ListThird Party Advisory
https://www.debian.org/security/2023/dsa-5506	[email protected]	Third Party Advisory
https://www.debian.org/security/2023/dsa-5513	[email protected]	Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2023-41/	[email protected]	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-42/	[email protected]	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-43/	[email protected]	Vendor Advisory

see all 16 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-787	Out-of-bounds Write	[email protected]
CWE-787	Out-of-bounds Write	CISA-ADP

Affected Products

Product	Versions
mozilla firefox	< 118
CPE cpe:2.3:a:mozilla:firefox:::::::: Remediation No remediation found in references.
mozilla firefox esr	< 115.3
CPE cpe:2.3:a:mozilla:firefox_esr:::::::: Remediation No remediation found in references.
mozilla thunderbird	< 115.3
CPE cpe:2.3:a:mozilla:thunderbird:::::::: Remediation No remediation found in references.
debian debian linux	10.0 11.0 12.0
CPE cpe:2.3:o:debian:debian_linux:10.0:::::::* cpe:2.3:o:debian:debian_linux:11.0:::::::* cpe:2.3:o:debian:debian_linux:12.0:::::::* Remediation No remediation found in references.

Change History

11 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
May 1, 2025	CVE Modified	CISA-ADP
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Oct 12, 2023	Modified Analysis	[email protected]
Oct 9, 2023	CVE Modified	[email protected]
Oct 3, 2023	CVE Modified	[email protected]
Sep 29, 2023	Initial Analysis	[email protected]
Sep 29, 2023	CVE Modified	[email protected]
Sep 29, 2023	CVE Modified	[email protected]

CVE-2023-5176 Details

Description

Metrics

References to Advisories, Solutions, and Tools

Weakness Enumeration

Affected Products

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

Change History

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