CVE-2023-4576

HighCVSS 8.6/10Last modified Jun 17, 2026

Description

On Windows, an integer overflow could occur in `RecordedSourceSurfaceCreation` which resulted in a heap buffer overflow potentially leaking sensitive data that could have led to a sandbox escape. *This bug only affects Firefox on Windows. Other operating systems are unaffected.* This vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, Thunderbird < 102.15, and Thunderbird < 115.2.

Metrics

CVSS 3.1 8.6/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

Weakness enumeration

CWE-190

Affected software

Vendor	Product	Versions
Mozilla	Firefox	>= unspecified, < 117
Mozilla	Firefox ESR	>= unspecified, < 102.15
Mozilla	Firefox ESR	>= unspecified, < 115.2
Mozilla	Thunderbird	>= unspecified, < 102.15
Mozilla	Thunderbird	>= unspecified, < 115.2
mozilla	firefox	< 117
mozilla	firefox_esr	< 102.15; < 115.2
mozilla	thunderbird	< 102.15; < 115.2

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1846694Issue Tracking, Permissions Required
https://www.mozilla.org/security/advisories/mfsa2023-34/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-35/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-36/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-37/
https://www.mozilla.org/security/advisories/mfsa2023-38/Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1846694Issue Tracking, Permissions Required
https://www.mozilla.org/security/advisories/mfsa2023-34/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-35/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-36/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-37/
https://www.mozilla.org/security/advisories/mfsa2023-38/Vendor Advisory

Timeline

Published: Sep 11, 2023
Last modified: Jun 17, 2026
NVD status: Modified

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