vulnerability
Arch Linux: Arbitrary code execution (CVE-2020-26950)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 9 | (AV:N/AC:M/Au:N/C:C/I:C/A:C) | Dec 9, 2020 | Jul 11, 2025 | Nov 27, 2025 |
Severity
9
CVSS
(AV:N/AC:M/Au:N/C:C/I:C/A:C)
Published
Dec 9, 2020
Added
Jul 11, 2025
Modified
Nov 27, 2025
Description
A use-after-free has been found in Firefox before 82.0.3 where, in certain circumstances, the MCallGetProperty opcode can be emitted with unmet assumptions.
Solution
arch-linux-upgrade-latest
References
- CVE-2020-26950
- https://attackerkb.com/topics/CVE-2020-26950
- URL-http://packetstormsecurity.com/files/166175/Firefox-MCallGetProperty-Write-Side-Effects-Use-After-Free.html
- URL-https://bugzilla.mozilla.org/show_bug.cgi?id=1675905
- URL-https://security.archlinux.org/ASA-202011-6
- URL-https://www.mozilla.org/en-US/security/advisories/mfsa2020-49/
- URL-https://www.mozilla.org/security/advisories/mfsa2020-49/
- CWE-416
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