VDB
DEBIAN-CVE-2021-23994
DEBIAN-CVE-2021-23994
PUBLISHED
CVSS 9.300000190734863 CRITICAL
A WebGL framebuffer was not initialized early enough, resulting in memory corruption and an out of bound write. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.
Risk Scores
CVSS v4.0
9.300000190734863
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:12 | thunderbird | 0, 0, 0 |
| Debian:13 | firefox-esr | 0, 0, 0 |
| Debian:14 | firefox-esr | 0, 0, 0 |
| Debian:11 | firefox-esr | 0, 0, 0 |
| Debian:13 | thunderbird | 0, 0, 0 |
| Debian:14 | thunderbird | 0, 0, 0 |
| Debian:12 | firefox-esr | 0, 0, 0 |
| Debian:11 | thunderbird | 0, 0, 0 |
Timeline
- Jun 24, 2021 CVE Published
- Apr 28, 2026 CVE Updated