CVE-2020-26972

EPSS 1.3%

Vexday Risk Score

3Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS —EPSS 1.3%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

07 Jan 2021Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

The lifecycle of IPC Actors allows managed actors to outlive their manager actors; and the former must ensure that they are not attempting to use a dead actor they have a reference to. Such a check was omitted in WebGL, resulting in a use-after-free and a potentially exploitable crash. This vulnerability affects Firefox < 84.

Affected products

Mozilla · Firefox

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References

https://bugzilla.mozilla.org/show_bug.cgi?id=1671382 https://www.mozilla.org/security/advisories/mfsa2020-54/