Search/CVE-2021-23994
● CVE — High

CVE-2021-23994

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.

View graph Watch Export
CVSS v3.1
8.8 HIGH
EPSS
1.76%
probability of exploitation in 30 days
CISA KEV
Not listed
no confirmed exploitation reported
News coverage
0
sources referencing this CVE
EPSS Trend
Aug 16, 2026 → Sep 19, 2026
● 0.01pp
1.76% → 1.76% over 2 tracked changes
CVSS v3.1 Detail
Attack VectorNETWORK
Attack ComplexityLOW
Privileges RequiredNONE
User InteractionREQUIRED
ScopeUNCHANGED
ConfidentialityHIGH
IntegrityHIGH
AvailabilityHIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Connections
4 relationships
Timeline
disclosure → media coverage
Jun 24, 2021
Disclosure — published as a CVE record. · last revised by NVD Nov 21, 2024