CVE-2020-26973

EPSS 1.6%

Vexday Risk Score

3Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS —EPSS 1.6%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

07 Jan 2021Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

Certain input to the CSS Sanitizer confused it, resulting in incorrect components being removed. This could have been used as a sanitizer bypass. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6.

Affected products

Mozilla · Firefox Mozilla · Firefox ESR Mozilla · Thunderbird

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References

https://bugzilla.mozilla.org/show_bug.cgi?id=1680084 https://www.mozilla.org/security/advisories/mfsa2020-54/https://www.mozilla.org/security/advisories/mfsa2020-55/https://www.mozilla.org/security/advisories/mfsa2020-56/