🛡️ CVE-2023-5676 — openj9

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is high, an attacker needs administrative 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 none, availability high.

CVSS metrics in full

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

• Attack vector: Local — a local account, shell or session on the host is needed.
• Attack complexity: High — the attacker first has to win a race, learn a secret or otherwise prepare the target.
• Privileges required: High — administrative rights are needed first.
• User interaction: None — nobody has to be tricked into anything.
• Scope: Unchanged — the damage stays inside the vulnerable component.
• Confidentiality impact: None.
• Integrity impact: None.
• Availability impact: High — total loss, or loss the attacker controls.

Weakness class

CVE-2023-5676 is classified as CWE-364: Signal Handler Race Condition. The product uses a signal handler that introduces a race condition.

Affected software

CVE-2023-5676 is recorded against 1 package.

• openj9 (fixed in 0.41.0)

Timeline and source

Published on 15 November 2023 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

github.com
gitlab.eclipse.org
github.com
gitlab.eclipse.org
security.netapp.com

Other advisories for this package

openj9 has other advisories on record. If you are patching this one, these are worth checking on the same host:

• CVE-2026-16441 (9.6 Critical, published 21 Jul 2026)
• CVE-2026-16439 (9.1 Critical, published 21 Jul 2026)
• CVE-2026-6918 (7.5 High, published 5 May 2026)
• CVE-2025-4447 (7.8 High, published 9 May 2025)
• CVE-2024-10917 (3.7 Low, published 11 Nov 2024)
• CVE-2024-3933 (5.3 Medium, published 27 May 2024)
• CVE-2023-2597 (7.0 High, published 22 May 2023)
• CVE-2022-3676 (6.5 Medium, published 24 Oct 2022)

Same weakness in other software

These advisories are the same class of weakness (CWE-364: Signal Handler Race Condition) in other software:

• CVE-2026-42002 (5.9 Medium, published 21 May 2026)
• CVE-2026-33565 (3.3 Low, published 19 May 2026)
• CVE-2026-27766 (5.5 Medium, published 19 May 2026)
• CVE-2026-24792 (8.1 High, published 19 May 2026)
• CVE-2025-4598 (4.7 Medium, published 30 May 2025)
• CVE-2024-6409 (7.0 High, published 8 Jul 2024)
• CVE-2024-6387 (8.1 High, published 1 Jul 2024)
• CVE-2023-1285 (7.5 High, published 14 Apr 2023)

Details

Affected Packages

References