VDB

DEBIAN-CVE-2026-0665

DEBIAN-CVE-2026-0665 PUBLISHED CVSS 6.5 MEDIUM

Record from OSV · Published February 18, 2026

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.

Fixed versions

Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.

PackageEcosystemFixed in
qemuDebian:131:10.0.8+ds-0+deb13u1
qemuDebian:141:10.2.0+ds-2

Risk scores

CVSS 3.1
6.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Affected products

VendorProductVersions
Debian:13qemu0, 1:10.0.2+ds-2, 1:10.0.2+ds-2+deb13u1
Debian:14qemu0, 1:10.0.2+ds-2, 1:10.0.3+ds-1

Timeline

  • Feb 18, 2026 CVE Published
  • Oct 1, 2026 CVE Updated

Query this with the API

The same record, from the CLI:

vulnetix vdb vuln DEBIAN-CVE-2026-0665
vulnetix vdb fixes DEBIAN-CVE-2026-0665

Or with curl, using the org id and key from your account page:

curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
  "https://api.vdb.vulnetix.com/v2/vuln/DEBIAN-CVE-2026-0665/fixes/registry"

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