CVE-2023-37211

Memory safety bugs present in Firefox 114, Firefox ESR 102.12, 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 < 115, Firefox ESR < 102.13, and Thunderbird < 102.13.

CVSS 3.1

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

EPSS

0.8% chance of exploitation in the next 30 days; higher than 54% of CVEs (scores of 2026-10-25)

CWE

CWE-787

Published

2023-07-05

Modified

2026-10-24

Record from

the NVD, synced 2026-10-24

Affected

• debian:debian_linux
• mozilla:firefox
• mozilla:firefox_esr
• mozilla:thunderbird

References

• https://bugzilla.mozilla.org/buglist.cgi?bug_id=1832306%2C1834862%2C1835886%2C1836550%2C1837450
• https://lists.debian.org/debian-lts-announce/2023/07/msg00006.html
• https://lists.debian.org/debian-lts-announce/2023/07/msg00015.html
• https://www.debian.org/security/2023/dsa-5450
• https://www.debian.org/security/2023/dsa-5451

Check your stackJSON