CVE-2023-6856
The WebGL `DrawElementsInstanced` method was susceptible to a heap buffer overflow when used on systems with the Mesa VM
The WebGL DrawElementsInstanced method was susceptible to a heap buffer overflow when used on systems with the Mesa VM driver. This issue could allow an attacker to perform remote code execution and sandbox escape. This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121.
HIGH · CVSS 8.8
EPSS 0.10471
Schedule remediation
- EPSS ≥ 0.10 - elevated exploitation probability
- EPSS percentile: top 7% of all CVEs by exploitation likelihood
- CVSS base score ≥ 7.0
Sigma rules1
YARA rules0