CVE-2021-29986
A suspected race condition when calling getaddrinfo led to memory corruption and a potentially exploitable crash. *Note: This issue only affected Linux operating systems. Other operating systems are unaffected.* This vulnerability affects Thunderbird < 78.13, Thunderbird < 91, Firefox ESR < 78.13, and Firefox < 91.
- Affected products
- Alt Linux, Astra Linux, Centos, Firefox, Firefox Esr, Linuxmint, Red Hat, Rocky Linux
- Mozilla Firefox
- < 91.0
- Mozilla Firefox Esr
- < 78.13.0
- Mozilla Thunderbird
- < 78.13.0
- Fix
- Available
- CVSS 3.1
- 8.1 HIGH
- EPSS
- 1.3% (67th percentile)
- Weakness
- CWE-362
- NVD status
- Modified
- Published
- 2021-08-17
CVE-2021-29986 at NVD
No indexed exploits for CVE-2021-29986 yet
Our index is partial: it proves presence, never absence
No exploit for CVE-2021-29986 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.