HIGH

CVE-2026-62432

2026-07-28 CVSS v3.1

CVSS

7.3

Description

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.

Weakness (CWE)

CWE-362 Race Condition

EPSS Score

0.25%

Probability of exploitation in next 30 days

16th percentile

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

View on dbcve.org

Base CVE data derived from NVD (public domain). Enrichment by dbcve.org (CC-BY-4.0). Fetched via API.

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