CVE-2022-34470

moderate-risk

Published 2022-12-22

Session history navigations may have led to a use-after-free and potentially exploitable crash. This vulnerability affects Firefox < 102, Firefox ESR < 91.11, Thunderbird < 102, and Thunderbird < 91.11.

Do I need to act?

0.65% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 9.8/10 Critical

NETWORK / LOW complexity

Affected Products (3)

Firefox

Firefox Esr

Thunderbird

Affected Vendors

Mozilla

References (9)

Issue Tracking https://bugzilla.mozilla.org/show_bug.cgi?id=1765951

Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2022-24/

Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2022-25/

Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2022-26/

Issue Tracking https://bugzilla.mozilla.org/show_bug.cgi?id=1765951

Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2022-24/

Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2022-25/

Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2022-26/

Issue Tracking https://bugzilla.mozilla.org/show_bug.cgi?id=1765951

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moderate-risk

Severity 32/34 · Critical

Exploitability 2/34 · Minimal

Exposure 9/34 · Low