CVE-2022-42928

HIGH 8.8CVE-2022-42928 · Published 22/12/2022 · updated 17/06/2026

In short

CVE-2022-42928 is a HIGH (CVSS 8.8) vulnerability affecting firefox (mozilla), firefox esr (mozilla), thunderbird (mozilla).
Chance of exploitation in the next 30 days (EPSS): 0.89%, higher than 59.5% of all vulnerabilities.
Fix: update to 106.0, 102.4 or later.

Package	Affected versions	Patched versions
firefox mozilla	`< 106.0`	`106.0`
firefox esr mozilla	`< 102.4`	`102.4`
thunderbird mozilla	`< 102.4`	`102.4`

Description

Certain types of allocations were missing annotations that, if the Garbage Collector was in a specific state, could have lead to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 106, Firefox ESR < 102.4, and Thunderbird < 102.4.

References

bugzilla.mozilla.org/show_bug.cgi · Issue Tracking
mozilla.org/security/advisories/mfsa2022-44 · Vendor Advisory
mozilla.org/security/advisories/mfsa2022-45 · Vendor Advisory
mozilla.org/security/advisories/mfsa2022-46 · Vendor Advisory

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Package

Affected versions

Patched versions

firefox

mozilla

< 106.0

106.0

firefox esr

mozilla

< 102.4

102.4

thunderbird

mozilla

< 102.4

102.4

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