VDB
DEBIAN-CVE-2021-43534
DEBIAN-CVE-2021-43534
PUBLISHED
CVSS 8.800000190734863 HIGH
Mozilla developers and community members reported memory safety bugs present in Firefox 93 and Firefox ESR 91.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.
Risk Scores
CVSS 3.1
8.800000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:13 | firefox-esr | 0 |
| Debian:13 | thunderbird | 0 |
| Debian:12 | firefox-esr | 0 |
| Debian:14 | thunderbird | 0 |
| Debian:14 | firefox-esr | 0 |
| Debian:12 | thunderbird | 0 |
Timeline
- Dec 8, 2021 CVE Published
- Oct 23, 2026 CVE Updated