vulnerability
MFSA2021-11 Firefox: Security Vulnerabilities fixed in Firefox ESR 78.9 (CVE-2021-23981)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 6 | (AV:N/AC:M/Au:N/C:P/I:N/A:P) | Mar 23, 2021 | Mar 24, 2021 | Mar 27, 2026 |
Severity
6
CVSS
(AV:N/AC:M/Au:N/C:P/I:N/A:P)
Published
Mar 23, 2021
Added
Mar 24, 2021
Modified
Mar 27, 2026
Description
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.
Solution
mozilla-firefox-esr-upgrade-78_9
Rapid7 Labs
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