🛡️ CVE-2023-31926 — brocade-fabric-operating-system

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 unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity high, availability high.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/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: Unchanged — the damage stays inside the vulnerable component.
• Confidentiality impact: None.
• Integrity impact: High — total loss, or loss the attacker controls.
• Availability impact: High — total loss, or loss the attacker controls.

Weakness class

CVE-2023-31926 is classified as CWE-281: Improper Preservation of Permissions. Permissions are not carried over correctly during an operation such as copy or restore, widening access.

Affected software

CVE-2023-31926 is recorded against 1 package.

• brocade-fabric-operating-system (fixed in 9.1.1c)

Timeline and source

Published on 2 August 2023 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

security.netapp.com
support.broadcom.com
security.netapp.com
support.broadcom.com

Other advisories for this package

brocade-fabric-operating-system has other advisories on record. If you are patching this one, these are worth checking on the same host:

• CVE-2024-6119 (7.5 High, published 3 Sep 2024)
• CVE-2024-2398 (8.6 High, published 27 Mar 2024)
• CVE-2023-31428 (5.5 Medium, published 2 Aug 2023)
• CVE-2023-31927 (5.3 Medium, published 2 Aug 2023)
• CVE-2023-31432 (7.8 High, published 2 Aug 2023)
• CVE-2023-31431 (5.5 Medium, published 2 Aug 2023)
• CVE-2023-31430 (5.5 Medium, published 2 Aug 2023)
• CVE-2023-31928 (6.3 Medium, published 2 Aug 2023)

Same weakness in other software

These advisories are the same class of weakness (CWE-281: Improper Preservation of Permissions) in other software:

• CVE-2025-14779 (3.8 Low, published 6 Aug 2026)
• CVE-2022-44020 (5.5 Medium, published 13 Jul 2026)
• CVE-2023-28647 (5.0 Medium, published 12 Jul 2026)
• CVE-2023-28646 (2.0 Low, published 12 Jul 2026)
• CVE-2026-23556 (published 9 Jul 2026)
• CVE-2026-4360 (2.0 Low, published 8 Jul 2026)
• CVE-2026-58494 (6.5 Medium, published 8 Jul 2026)
• CVE-2026-35361 (2.0 Low, published 6 Jul 2026)

Details

Affected Packages

References