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Vulnerability record · CVE-2023-29543 · published 2 June 2023

CVE-2023-29543: Mozilla firefox use after free vulnerability

Mozilla · Firefox

An attacker could have caused memory corruption and a potentially exploitable use-after-free of a pointer in a global object's debugger vector. This vulnerability affects Firefox for Android < 112, Firefox < 112, and Focus for Android < 112.

8.8 CVSS 3.1 High EPSS 0.52% · top 58.0% CWE-416 · Use after freeCWE-116 · CWE-116
8.8CVSS 3.1 base score
0.52%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
4References
19 Aug 2026Last modified by NVD

Description

An attacker could have caused memory corruption and a potentially exploitable use-after-free of a pointer in a global object's debugger vector. This vulnerability affects Firefox for Android < 112, Firefox < 112, and Focus for Android < 112.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://bugzilla.mozilla.org/show_bug.cgi?id=1816158 Issue Tracking
https://www.mozilla.org/security/advisories/mfsa2023-13/ Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1816158 Issue Tracking
https://www.mozilla.org/security/advisories/mfsa2023-13/ Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2023-29543), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.