VULNERABILITY INTELLIGENCE

CVE-2021-29972

CVSS score8.8 HIGH

EPSS probability1.04%

CISA KEVNot currently listed

Published2021-08-05

Last modified2026-06-17

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

Description

A use-after-free vulnerability was found via testing, and traced to an out-of-date Cairo library. Updating the library resolved the issue, and may have remediated other, unknown security vulnerabilities as well. This vulnerability affects Firefox < 90.

Weakness classification

nvd@nist.gov: CWE-416

Primary references

security@mozilla.org — Exploit, Issue Tracking, Vendor Advisory
security@mozilla.org — Third Party Advisory
security@mozilla.org — Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Exploit, Issue Tracking, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Vendor Advisory