---
cve: "CVE-2021-23981"
severity: "LOW"
cvss: 3.1
epss: "1.1%"
vendor: "Mozilla"
kev: false
exploited: false
published: "2021-03-31 13:42:17"
tags: [cve, security, low]
source: tsecurity.de CVE-Dossier
exported: "2026-09-21T03:52:19+02:00"
---

# CVE-2021-23981

> 3.1 LOW

## Beschreibung

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. This vulnerability affects Firefox ESR < 78.9, Firefox < 87, and Thunderbird < 78.9.

## Referenzen

- <https://www.mozilla.org/security/advisories/mfsa2021-10/>
- <https://www.mozilla.org/security/advisories/mfsa2021-12/>
- <https://www.mozilla.org/security/advisories/mfsa2021-11/>
- <https://bugzilla.mozilla.org/show_bug.cgi?id=1692832>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2021-23981) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_