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

VendorProductVersions
Debian:12thunderbird0, 0, 0
Debian:13firefox-esr0, 0, 0
Debian:14firefox-esr0, 0, 0
Debian:11firefox-esr0, 0, 0
Debian:13thunderbird0, 0, 0
Debian:14thunderbird0, 0, 0
Debian:12firefox-esr0, 0, 0
Debian:11thunderbird0, 0, 0

Timeline

  • Jun 24, 2021 CVE Published
  • Apr 28, 2026 CVE Updated
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