CVE-2022-0511

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-12-22 · updated 2026-06-17
Weakness: CWE-787

Description

Mozilla developers and community members Gabriele Svelto, Sebastian Hengst, Randell Jesup, Luan Herrera, Lars T Hansen, and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 96. 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 < 97.

Affected products

Mozilla Firefox: before 97.0 — fixed in 97.0

How to fix

Upgrade to a fixed version: Mozilla Firefox 97.0. Check the vendor advisory for mitigations.

References

https://bugzilla.mozilla.org/buglist.cgi?bug_id=1713579%2C1735448%2C1743821%2C1746313%2C1746314%2C1746316%2C1746321%2C1746322%2C1746323%2C1746412%2C1746430%2C1746451%2C1746488%2C1746875%2C1746898%2C1746905%2C1746907%2C1746917%2C1747128%2C1747137%2C1747331%2C1747346%2C1747439%2C1747457%2C1747870%2C1749051%2C1749274%2C1749831
https://www.mozilla.org/security/advisories/mfsa2022-04/
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1713579%2C1735448%2C1743821%2C1746313%2C1746314%2C1746316%2C1746321%2C1746322%2C1746323%2C1746412%2C1746430%2C1746451%2C1746488%2C1746875%2C1746898%2C1746905%2C1746907%2C1746917%2C1747128%2C1747137%2C1747331%2C1747346%2C1747439%2C1747457%2C1747870%2C1749051%2C1749274%2C1749831
https://www.mozilla.org/security/advisories/mfsa2022-04/

Get alerted when CVE-2022-0511 or the next vulnerability affects your stack