What is CVE-2022-40957?

CVE-2022-40957 is a medium-severity vulnerability in Mozilla Firefox, classified under CWE-240. CVSS score: 6.5/10. Published 2022-12-22.

How severe is CVE-2022-40957?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Mozilla Firefox

CVE-2022-40957

Inconsistent data in instruction and data cache when creating wasm code could lead to a potentially exploitable crash.<br>*This bug only affects Firefox on ARM64 platforms.*. This vulnerability affects Firefox ESR < 102.3, Thunderbird < 10…

EPSS: 0.011 (61.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

Mozilla Firefox — versions unspecified
Mozilla Firefox Esr — versions unspecified
Mozilla Firefox_esr
Mozilla Thunderbird — versions unspecified

Weakness classification (CWE)

CWE-240

References

security@mozilla.org (Vendor Advisory)
security@mozilla.org (Vendor Advisory)
security@mozilla.org (Vendor Advisory)
security@mozilla.org (Permissions Required, Issue Tracking)

Frequently asked questions

What is CVE-2022-40957?: CVE-2022-40957 is a medium-severity vulnerability in Mozilla Firefox, classified under CWE-240. CVSS score: 6.5/10. Published 2022-12-22.
How severe is CVE-2022-40957?: Medium severity. CVSS v3 base score is 6.5 out of 10.