CVE-2021-29981
An issue present in lowering/register allocation could have led to obscure but deterministic register confusion failures in JITted code that would lead to a potentially exploitable crash. This vulnerability affects Firefox < 91 and Thunderbird < 91.
- Affected products
- Alt Linux, Astra Linux, Firefox, Linuxmint, Suse, Thunderbird, Ubuntu
- Mozilla Firefox
- < 91.0
- Mozilla Thunderbird
- < 91.0
- Fix
- Available
- CVSS 3.1
- 8.8 HIGH
- EPSS
- 1.0% (60th percentile)
- NVD status
- Modified
- Published
- 2021-08-17
CVE-2021-29981 at NVD
No indexed exploits for CVE-2021-29981 yet
Our index is partial: it proves presence, never absence
No exploit for CVE-2021-29981 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.