Vulnerability intelligence
CVE-2026-79610
Xen Xen
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.
CVSS Score
—
Unrated
EPSS — Exploit Probability
0.2%
Riskier than 7% of all CVEs · checked 2026-10-15
Exploitation
Not in CISA KEV
KEV does not include every exploited vulnerability
Remediation
unknown
Check vendor advisories
1 article across 1 outlet · first covered Oct 15, 2026 · latest Oct 15, 2026
Coverage timeline
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Citrix Patches XenServer Flaws That Could Let Guests Crash Hostssecurityonline.info · Oct 15, 2026