🛡️ CVE-2025-21090

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is changed, meaning a successful attack can affect components beyond the vulnerable one. Rated impact: confidentiality none, integrity none, availability high.

CVSS metrics in full

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

• Attack vector: Local — a local account, shell or session on the host is needed.
• Attack complexity: Low — the attack works reliably, with no preparation.
• Privileges required: Low — an ordinary user account is enough.
• User interaction: None — nobody has to be tricked into anything.
• Scope: Changed — a successful attack reaches components beyond the vulnerable one.
• Confidentiality impact: None.
• Integrity impact: None.
• Availability impact: High — total loss, or loss the attacker controls.

Weakness class

CVE-2025-21090 is classified as CWE-771: Missing Reference to Active Allocated Resource. The product does not properly maintain a reference to a resource that has been allocated, which prevents the resource from being reclaimed.

Affected software

CVE-2025-21090 is recorded against 1 package.

• unknown

Timeline and source

Published on 12 August 2025 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

intel.com
lists.debian.org

Other advisories for this package

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

• CVE-2022-4995 (9.8 Critical, published 7 Aug 2026)
• CVE-2022-4994 (published 30 Jul 2026)
• CVE-2023-49899 (9.8 Critical, published 16 Jul 2026)
• CVE-2023-49900 (9.8 Critical, published 16 Jul 2026)
• CVE-2022-4990 (published 3 Jul 2026)
• CVE-2022-4989 (published 3 Jul 2026)
• CVE-2022-50973 (9.8 Critical, published 2 Jul 2026)
• CVE-2023-20572 (published 26 Jun 2026)

Same weakness in other software

These advisories are the same class of weakness (CWE-771: Missing Reference to Active Allocated Resource) in other software:

• CVE-2026-3039 (7.5 High, published 20 May 2026)
• CVE-2026-20004 (7.4 High, published 25 Mar 2026)
• CVE-2024-56343 (4.3 Medium, published 6 Jun 2025)
• CVE-2023-20244 (8.6 High, published 1 Nov 2023)

CVE-2025-21090 on other distributions

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

Details

Affected Packages

References