CVE-2022-42928
High
Published: 22 December 2022
Published
22 December 2022
Modified
15 April 2025
KEV Added
—
Patch
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CVSS Score v3.1
8.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score
0.0020
41.8th percentile
Risk Priority
18
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2022-42928 is a high-severity NULL Pointer Dereference (CWE-476) vulnerability in Mozilla Firefox. Its CVSS base score is 8.8 (High).
Operationally, ranked at the 41.8th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-45984
Vulnerability details
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…
more
< 102.4.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
mozilla
firefox
≤ 106.0
mozilla
firefox esr
≤ 102.4
mozilla
thunderbird
≤ 102.4
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.