Is there a public exploit for CVE-2026-99267?

No public exploit for CVE-2026-99267 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.

What does CVE-2026-99267 affect?

CVE-2026-99267 affects Linux Linux.

— Unscored

In the Linux kernel, the following vulnerability has been resolved: iouring/napi: make stale entries time out after 60s With dynamic…

CVE-2026-99267

In the Linux kernel, the following vulnerability has been resolved: iouring/napi: make stale entries time out after 60s With dynamic tracking a NAPI id that hasn't been seen for a minute is meant to be dropped from the list the ring busy polls. The timeout is added to jiffies, but it is defined as 60 SECCONVERSION, and SECCONVERSION isn't the number of jiffies in a second. It is the internal factor of timespec64tojiffies(), HZ scaled up by SECJIFFIESC bits. For HZ=1000 that is 1000 << 22, which puts the timeout at about eight years. On 32-bit the multiplication overflows. So entries are never removed, and every id that a socket of the ring ever had keeps being polled on each wait.

Assessment

CVSS: Not yet scored
Severity: Unscored
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 3 November 2026
Last updated: 3 November 2026
Affected: Linux · Linux
Assigner: Linux

At the source

EUVD (ENISA)

References

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