[UPDATE] [high] Fast Datapath for Red Hat Enterprise Linux (ovn): Multiple Vulnerabilities

CSIRTS triage

What

Multiple vulnerabilities in Fast Datapath for Red Hat Enterprise Linux allow denial of service or information disclosure.

Who is affected

Red Hat Enterprise Linux deployments running Fast Datapath (OVN) components.

Urgency

High severity; remote unauthenticated denial of service capability warrants urgent patching.

Action

Apply Red Hat security updates for CVE-2026-5265 and CVE-2026-5367 to Fast Datapath.

AI-assisted analysis generated from the source advisory — verify against the original.

Details

Source

CERT-Bund (BSI) Security Advisories (DE · national-cert · site)

Severity

high

Published

2026-08-25

Exploitation

Not in CISA KEV at last sync

Language

Machine-translated to English — verify against the original

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-1315

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

• Low exploitation riskCVE-2026-52650.63% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 47% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2026-53670.87% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 56% of all EPSS-scored CVEs.

Referenced CVEs

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