CVE-2023-34416

CRITICAL

Firefox < 114.0 and Firefox ESR < 102.12 - Out-of-bounds Write

Title source: llm

Description

Memory safety bugs present in Firefox 113, Firefox ESR 102.11, and Thunderbird 102.12. 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 ESR < 102.12, Firefox < 114, and Thunderbird < 102.12.

References (6)

Core 6

Core References

Broken Link

https://bugzilla.mozilla.org/buglist.cgi?bug_id=1752703%2C1818394%2C1826875%2C1827340%2C1827655%2C1828065%2C1830190%2C1830206%2C1830795%2C1833339

Vendor Advisory

https://www.mozilla.org/security/advisories/mfsa2023-19/

Vendor Advisory

https://www.mozilla.org/security/advisories/mfsa2023-20/

Vendor Advisory

https://www.mozilla.org/security/advisories/mfsa2023-21/

Third Party Advisory

https://security.gentoo.org/glsa/202312-03

Third Party Advisory

https://security.gentoo.org/glsa/202401-10

Scores

CVSS v3 9.8

EPSS 0.0030

EPSS Percentile 53.6%

Attack Vector NETWORK

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

Details

CWE

CWE-787

Status published

Products (3)

mozilla/firefox < 114.0

mozilla/firefox_esr < 102.12

mozilla/thunderbird < 102.12

Published Jun 19, 2023

Tracked Since Feb 18, 2026