CVE-2026-0665

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Source
https://cve.org/CVERecord?id=CVE-2026-0665
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-0665.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-0665
Downstream
Related
Published
2026-02-18T20:50:03.724Z
Modified
2026-05-18T05:59:42.171007607Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H CVSS Calculator
Summary
Qemu-kvm: heap off-by-one in kvm xen physdevop_map_pirq
Details

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.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/0xxx/CVE-2026-0665.json",
    "cwe_ids": [
        "CWE-787"
    ],
    "cna_assigner": "fedora"
}
References

Affected packages

Git / gitlab.com/qemu-project/qemu

Affected ranges

Type
GIT
Repo
https://gitlab.com/qemu-project/qemu
Events
Introduced
c1eb2ddf0f8075faddc5f7c3d39feae3e8e9d6b4
Last affected
698104725efad4b29079d857dfdebbd804e34c99
Database specific 
{
    "extracted_events": [
        {
            "introduced": "8.0.0"
        },
        {
            "last_affected": "10.2.0"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Affected versions

v10.*
v10.0.0
v10.0.0-rc0
v10.0.0-rc1
v10.0.0-rc2
v10.0.0-rc3
v10.0.0-rc4
v10.1.0
v10.1.0-rc0
v10.1.0-rc1
v10.1.0-rc2
v10.1.0-rc3
v10.1.0-rc4
v10.2.0
v10.2.0-rc1
v10.2.0-rc2
v10.2.0-rc3
v10.2.0-rc4
v8.*
v8.0.0
v8.1.0
v8.1.0-rc0
v8.1.0-rc1
v8.1.0-rc2
v8.1.0-rc3
v8.1.0-rc4
v8.2.0
v8.2.0-rc0
v8.2.0-rc1
v8.2.0-rc2
v8.2.0-rc3
v8.2.0-rc4
v9.*
v9.0.0
v9.0.0-rc0
v9.0.0-rc1
v9.0.0-rc2
v9.0.0-rc3
v9.0.0-rc4
v9.1.0
v9.1.0-rc0
v9.1.0-rc1
v9.1.0-rc2
v9.1.0-rc3
v9.1.0-rc4
v9.2.0
v9.2.0-rc0
v9.2.0-rc1
v9.2.0-rc2
v9.2.0-rc3

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-0665.json"