CVE-2026-0665

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CVSS 3.1

6.5 medium

EPSS

<1%p4

Published

Feb 18, 2026 (Feb 18, 2026)

Modified

Jun 17, 2026

Description

An off-by-one error was found in QEMU's KVM Xen guest support. A malicious guest could use this flaw to trigger out-of-bounds heap accesses in the QEMU process via the emulated Xen physdev hypercall interface, leading to a denial of service or potential memory corruption.

Weakness: CWE-787
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

NVD CVE.org GitHub PoCs EPSS (0.1%)

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