vulnerability
Arch Linux: Arbitrary code execution (CVE-2020-26959)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:N/AC:M/Au:N/C:P/I:P/A:P) | Dec 9, 2020 | Jul 11, 2025 | Nov 27, 2025 |
Severity
7
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
Published
Dec 9, 2020
Added
Jul 11, 2025
Modified
Nov 27, 2025
Description
A security issue has been found in Firefox before 83.0 where, during browser shutdown, reference decrementing could have occurred on a previously freed object, resulting in a use-after-free, memory corruption, and a potentially exploitable crash.
Solution
arch-linux-upgrade-latest
References
- CVE-2020-26959
- https://attackerkb.com/topics/CVE-2020-26959
- URL-https://bugzilla.mozilla.org/show_bug.cgi?id=1669466
- URL-https://security.archlinux.org/ASA-202011-12
- URL-https://www.mozilla.org/en-US/security/advisories/mfsa2020-50/
- URL-https://www.mozilla.org/security/advisories/mfsa2020-50/
- URL-https://www.mozilla.org/security/advisories/mfsa2020-51/
- URL-https://www.mozilla.org/security/advisories/mfsa2020-52/
- CWE-416
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