Is there a public exploit for CVE-2026-100081?

No public exploit for CVE-2026-100081 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-2026-100081 affect?

CVE-2026-100081 affects Linux Linux.

— Unscored

In the Linux kernel, the following vulnerability has been resolved: xen-netback: defer xenvifmcastaddrlistfree() In order for the function…

CVE-2026-100081

In the Linux kernel, the following vulnerability has been resolved: xen-netback: defer xenvifmcastaddrlistfree() In order for the function to legitimately avoid locking/RCU, it needs to run after all TX/RX processing has finished/stopped: Lookups happen from xenvifstartxmit(), while adds/removes happen from xenviftxaction() (called out of xenvifpoll()). Move the call out of xenvifdisconnectdata() (the call to the function from connect()'s error path doesn't require any cleaning up there), and put it past the synchronization point in backenddisconnect(). This is XSA-527 / CVE-2026-100081.

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: 6 November 2026
Last updated: 6 November 2026
Affected: Linux · Linux
Assigner: Linux

At the source

EUVD (ENISA)

References

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