CVE-2026-2243
Qemu-kvm: heap buffer out-of-bounds read in vmdk compressed grain parsing
- State
- Published
- Severity
- 5.1 Medium
- Published
- Feb 19, 2026
- Updated
- Aug 31, 2026
- Reserved
- Feb 9, 2026
Description
A flaw was found in QEMU. A specially crafted VMDK image could trigger an out-of-bounds read vulnerability, potentially leading to a 12-byte leak of sensitive information or a denial of service condition (DoS).
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 5.1 Medium | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L | redhat |
Weaknesses
- CWE-125 Out-of-bounds Read
Affected Products
| Product | Versions |
|---|---|
qemu |
|
Red Hat Enterprise Linux 10Red Hat | |
Red Hat Enterprise Linux 6Red Hat | |
Red Hat Enterprise Linux 7Red Hat | |
Red Hat Enterprise Linux 7Red Hat | |
Red Hat Enterprise Linux 8Red Hat | |
Red Hat Enterprise Linux 9Red Hat | |
Red Hat OpenShift Container Platform 4Red Hat | |
Red Hat OpenShift Container Platform 4Red Hat |
References
- https://access.redhat.com/security/cve/CVE-2026-2243vdb-entry
- RHBZ#2440934issue-tracking
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