CVE-2026-62432

7.3 highEPSS 0.2%

High (7.3). EPSS 0.2% chance of exploitation in the next 30 days.

The EVTCHNOP_expand_array hypercall checks for whether FIFO event channels are enabled, but without holding the correct lock. It can race with EVTCHNOP_reset, resulting in dereferencing a NULL pointer.

Severity

CVSS 3.1

7.3 high

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

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 15% of CVEs (scores of 2026-10-31)
CWE: CWE-362
Published: 2026-07-28
Modified: 2026-07-28
Record from: the NVD, synced 2026-10-19

References

https://xenbits.xenproject.org/xsa/advisory-505.html
http://www.openwall.com/lists/oss-security/2026/07/28/21
http://xenbits.xen.org/xsa/advisory-505.html

Check your stack JSON