CVE-2026-0665
MEDIUM EPSS 4.0%
Published Feb 18, 20264mo ago · Modified Jun 17, 20261w ago
6.5 CVSS 3.1
Published Feb 18, 2026 4mo ago
Last Modified Jun 17, 2026 1w ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Changed
Confidentiality None
Integrity None
Availability High
Threat Intelligence
EPSS Exploit Probability
4.0% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-787 Out-of-bounds Write Memory Safety
References 2
- access.redhat.com https://access.redhat.com/security/cve/CVE-2026-0665
- bugzilla.redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=2428640
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.