🛡️ CVE-2025-4447 — openj9

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 high, 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:H/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: 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-2025-4447 is classified as CWE-121: Stack-based Buffer Overflow. An oversized write to a stack buffer overwrites saved state such as return addresses, which can redirect execution.

Affected software

CVE-2025-4447 is recorded against 1 package.

• openj9 (from 0.8.0 up to 0.51.0)

Timeline and source

Published on 9 May 2025 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

github.com
gitlab.eclipse.org

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-2024-10917 (3.7 Low, published 11 Nov 2024)
• CVE-2024-3933 (5.3 Medium, published 27 May 2024)
• CVE-2023-5676 (4.1 Medium, published 15 Nov 2023)
• 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-121: Stack-based Buffer Overflow) in other software:

• CVE-2023-28760 (7.5 High, published 2 Oct 2025)
• CVE-2022-32502 (6.3 Medium, published 14 May 2024)
• CVE-2023-27368 (8.8 High, published 3 May 2024)
• CVE-2023-32141 (8.8 High, published 3 May 2024)
• CVE-2023-27361 (8.0 High, published 3 May 2024)
• CVE-2023-32139 (8.8 High, published 3 May 2024)
• CVE-2023-32136 (8.8 High, published 3 May 2024)
• CVE-2023-32149 (8.8 High, published 3 May 2024)

Details

Affected Packages

References