CVE-2020-6819: Mozilla Firefox And Thunderbird Use-After-Free Vulnerability
Mozilla Firefox and Thunderbird contain a race condition vulnerability when running the nsDocShell destructor under certain conditions. The race condition creates a use-after-free vulnerability, causing unspecified impacts. Required action: Apply updates per vendor instructions.
· high severity · unattributed attribution
Evidence and provenance
- Original source
- CISA KEV report ↗
- Published
- 2021-11-03T00:00:00Z
- Confidence basis
- No actor match
- Record ID
f41a66b6d8d125f9d47d
Vulnerabilities
CVE-2020-6819
Use and citation
Verify the original report before making operational decisions. Cite this permanent page together with the original source, publication date, confidence level, and review status.