CVE-2023-3600

During the worker lifecycle, a use-after-free condition could have occurred, which could have led to a potentially exploitable crash. This vulnerability affects Firefox < 115.0.2, Firefox ESR < 115.0.2, and Thunderbird < 115.0.1.

CVSS 3.1

8.8CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS

0.6% chance of exploitation in the next 30 days; higher than 50% of CVEs (scores of 2026-10-25)

CWE

CWE-416

Published

2023-07-12

Modified

2026-10-23

Record from

the NVD, synced 2026-10-24

Affected

• mozilla:firefox
• mozilla:firefox_esr
• mozilla:thunderbird

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=1839703
• https://www.mozilla.org/security/advisories/mfsa2023-26/
• https://www.mozilla.org/security/advisories/mfsa2023-27/
• https://bugzilla.mozilla.org/show_bug.cgi?id=1839703
• https://www.mozilla.org/security/advisories/mfsa2023-26/

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