Medium [CVE-2026-5265] Heap Over-Read in ICMP Error Response Generation
This medium-severity Red Hat Linux advisory covers CVE-2026-5265 affecting Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 1, Red Hat Enterprise Linux 8.
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Summary
Heap Over-Read in ICMP Error Response Generation. Red Hat rates this moderate (CVSS 6.5).
Weakness: CWE-130. Affected package(s): ovn25.03, ovn25.09, ovn, ovn23.09, ovn24.03, ovn23.06.
Resolved in Red Hat advisory RHSA-2026:11702 — update the affected packages (`sudo dnf update`).
Affected products named by the advisory: Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 8.
- ovn25.03-0:25.03.2-100.el9fdp
- ovn25.09-0:25.09.2-103.el10fdp
- ovn-2021-0:21.12.0-145.el8fdp
- ovn25.09-0:25.09.2-103.el9fdp
- ovn23.09-0:23.09.6-16.el9fdp
- ovn25.03-0:25.03.2-100.el10fdp
- ovn24.03-0:24.03.7-82.el9fdp
- ovn23.06-0:23.06.4-30.el8fdp
- ovn23.06-0:23.06.4-30.el9fdp
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
- RHSA-2026:11702
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
Mitigation checklist
- Update the affected package(s) to the fixed version shipped in RHSA-2026:11702 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
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