Vulnerability in Mozilla Firefox

CVE-2023-6860

The `VideoBridge` allowed any content process to use textures produced by remote decoders. This could be abused to escape the sandbox. This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121.

EPSS: 0.010 (57.9th 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:H/A:N.

Affected products

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2023-6860?
CVE-2023-6860 is a medium-severity vulnerability in Mozilla Firefox. CVSS score: 6.5/10. Published 2023-12-19.
How severe is CVE-2023-6860?
Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2023-6860 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.