🛡️ CVE-2022-31626 — debian-linux

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is high, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

• Attack vector: Network — reachable from anywhere that can route to the service.
• Attack complexity: High — the attacker first has to win a race, learn a secret or otherwise prepare the target.
• Privileges required: Low — an ordinary user account is enough.
• User interaction: None — nobody has to be tricked into anything.
• Scope: Unchanged — the damage stays inside the vulnerable component.
• Confidentiality impact: High — total loss, or loss the attacker controls.
• Integrity impact: High — total loss, or loss the attacker controls.
• Availability impact: High — total loss, or loss the attacker controls.

Weakness class

CVE-2022-31626 is classified as CWE-120: Classic Buffer Overflow. Input is copied into a fixed-size buffer without a length check, overwriting memory past the end of it.

Affected software

CVE-2022-31626 is recorded against 4 packages.

• debian-linux
• libphp
• php
• php-min

Timeline and source

Published on 16 June 2022 and last revised on 17 June 2026. A public exploit is known to exist, which raises the urgency of patching considerably. A vendor advisory or fix has been published. Record sourced from NVD.

References

bugs.php.net
lists.debian.org
lists.fedoraproject.org
lists.fedoraproject.org
security.gentoo.org
security.netapp.com
www.debian.org
bugs.php.net
lists.debian.org
lists.fedoraproject.org
lists.fedoraproject.org
security.gentoo.org
security.netapp.com
www.debian.org

Other advisories for this package

debian-linux has other advisories on record. If you are patching this one, these are worth checking on the same host:

• CVE-2026-12996 (8.1 High, published 30 Jul 2026)
• CVE-2026-14355 (5.6 Medium, published 3 Jul 2026)
• CVE-2026-56968 (3.7 Low, published 23 Jun 2026)
• CVE-2026-49975 (7.5 High, published 8 Jun 2026)
• CVE-2026-9256 (8.1 High, published 22 May 2026)
• CVE-2026-46333 (7.1 High, published 15 May 2026)
• CVE-2026-31431 (7.8 High, published 22 Apr 2026)
• CVE-2026-41082 (7.3 High, published 16 Apr 2026)

Same weakness in other software

These advisories are the same class of weakness (CWE-120: Classic Buffer Overflow) in other software:

• CVE-2019-5064 (8.0 High, published 9 Jul 2026)
• CVE-2022-29210 (5.0 Medium, published 6 Jul 2026)
• CVE-2021-41499 (8.0 High, published 2 Jul 2026)
• CVE-2022-29974 (4.3 Medium, published 9 Dec 2024)
• CVE-2022-20846 (4.3 Medium, published 15 Nov 2024)
• CVE-2022-32504 (9.8 Critical, published 14 May 2024)
• CVE-2022-24805 (6.5 Medium, published 16 Apr 2024)
• CVE-2022-24807 (6.5 Medium, published 16 Apr 2024)

CVE-2022-31626 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Affected Packages

References