CYBERSECURITYTRACKER
Vulnerabilities

CVE-2026-79610

Xen: Race Condition

What it is

Reported

XSA-501 was about issues with v1 -> v2 and v2 -> v1 changes racing certain other grant table operations. Sadly a v2 -> v1 -> v2 change has yet another effect which wasn't accounted for: During the first change, status pages would be freed. During the second change they would be allocated again. Hence across the full pair of change the addresses of the status pages may change, rendering stale previously calculated pointers into the status array.

Source reported · Source: CVE record · Complete source description.
Dates
Source last published: · Source last updated:

What is affected

Reported

Xen; Xen. Product-level identification only; no affected-version conclusion is available from this field.

Source reported · Source: CVE record
Dates
Source last published: · Source last updated:

Urgency and basis

Tracker computed

Track

Current priority score and EPSS: loading from the tracker record. They are read when this page loads and are not shown without JavaScript. They change daily and are not part of "Source last updated".

Tracker decision tier from the evidence detailed below
Dates
Source last updated:

Exploitation evidence

Not reported

Not reported by tracked sources.

What to do

Not reported

Not reported by tracked sources.

Tracker inference. Guidance from the decision tier: No action now. Remediate within standard update timelines. Monitor for change.

Detection and validation

Mapped metadata availability only. These signals do not change priority.

Sigma, Atomic, Nuclei, and Metasploit: none mapped by tracked sources.

  • Sigma

    Not mapped by tracked sources.

  • Atomic

    Not mapped by tracked sources.

  • Nuclei

    Not mapped by tracked sources.

  • Metasploit

    Not mapped by tracked sources.

Evidence detail

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Glossary

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