PT-2026-4318 · Qemu+2 · Qemu+2

Bzimport · Published 2026-01-01 · Updated 2026-03-17 · CVE-2026-0665

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions QEMU (affected versions not specified)

Description An error in QEMU’s KVM Xen guest support allows a malicious guest to cause out-of-bounds heap accesses within the QEMU process. This is triggered through the emulated Xen physdev hypercall interface and can lead to a denial of service or potential memory corruption. The issue is an off-by-one error in the KVM Xen component.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2026-0665

OESA-2026-1351

OESA-2026-1352

OESA-2026-1354

OESA-2026-1355

OPENSUSE-SU-2026:10097-1

OPENSUSE-SU-2026:20357-1

SUSE-SU-2026:0445-1

SUSE-SU-2026:0662-1

SUSE-SU-2026:20666-1

SUSE-SU-2026:20693-1

SUSE-SU-2026:20716-1

USN-8073-1

Affected Products

Linuxmint

Qemu

Ubuntu

References · 47

• https://osv.dev/vulnerability/USN-8073-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-14876 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2026-1354 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2026-50239.html · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0662-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-0665 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-0665 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-8354 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-0665 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-0665 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:20693-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-11234 · Security Note
• https://osv.dev/vulnerability/openSUSE-SU-2026:10097-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-12464 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:20716-1 · Vendor Advisory