CVE-2023-4573

MediumCVSS 6.5/10Last modified Jun 17, 2026

Description

When receiving rendering data over IPC `mStream` could have been destroyed when initialized, which could have led to a use-after-free causing a potentially exploitable crash. This vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, Thunderbird < 102.15, and Thunderbird < 115.2.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-416

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=1846687Issue 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=1846687Issue 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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