CVEvulnerability
CVE-2021-29990
8.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2021-08-17
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 6.8 MEDIUM — AV:N/AC:M/Au:N/C:P/I:P/A:P
- Weaknesses
- CWE-787
Description
Mozilla developers and community members reported memory safety bugs present in Firefox 90. 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 < 91.
Affected configurations
• mozilla firefox (< 91.0)
Related
Weakness · CWE (1)
- CWE-787 Out-of-bounds Write weakness
References
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=1544190%2C1716481%2C1717778%2C1719319%2C1722073 Broken Link, Issue Tracking, Vendor Advisory
- https://security.gentoo.org/glsa/202202-03 Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2021-33/ Vendor Advisory
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=1544190%2C1716481%2C1717778%2C1719319%2C1722073 Broken Link, Issue Tracking, Vendor Advisory
- https://security.gentoo.org/glsa/202202-03 Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2021-33/ Vendor Advisory