Is there a public exploit for CVE-2026-71227?

No public exploit for CVE-2026-71227 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-71227?

CVE-2026-71227 scores CVSS 5.1 (v3.1), rated medium. EPSS puts the chance of exploitation in the next 30 days at 0.2%.

What does CVE-2026-71227 affect?

CVE-2026-71227 affects Red Hat, Stephan Muelle Red Hat Enterprise Linux 10.0 Extended Update Support, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9.6 Extended Update Support, libkcapi, Red Hat Enterprise Linux 9, Red Hat Hardened Images.

5.1 Medium

A flaw was found in libkcapi.

CVE-2026-71227

A flaw was found in libkcapi. A local attacker can influence an application that uses the Asynchronous Input/Output (AIO) interface. By reusing an AIO-enabled handle after a prior completion error, the kcapiaioreadall() function can enter a non-terminating wait loop. This can lead to a persistent denial of service, making the affected application or thread unresponsive.

Assessment

CVSS: 5.1 (v3.1)
Severity: Medium
EPSS: 0.2% chance of exploitation in the next 30 days
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 5 August 2026
Last updated: 2 November 2026
Affected: Red Hat · Stephan Muelle · Red Hat Enterprise Linux 10 · Red Hat Enterprise Linux 10.0 Extended Update Support · Red Hat Enterprise Linux 8 · Red Hat Enterprise Linux 9
Assigner: redhat

CVSS vectorCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

At the source

EUVD (ENISA)

References

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