CVE-2021-23981
Mozilla: Texture upload into an unbound backing buffer resulted in an out-of-bound read
Severity
ImportantRed Hat Product Security
CVSS 3.0
Review impact separately from score.
Published · March 23, 2021
Updated · November 22, 2025
Description
The Mozilla Foundation Security Advisory describes this issue as:
A texture upload of a Pixel Buffer Object could have confused the WebGL code to skip binding the buffer used to unpack it, resulting in memory corruption and a potentially exploitable information leak or crash.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.0 · 7.5CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE-125 · Out-of-bounds Read