Out-of-Bounds Read Vulnerability in QEMU Affecting Sensitive Information
CVE-2026-2243

5.1MEDIUM

Key Information:

Vendor

Red Hat
Status
Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Vendor
CVE Published:
19 February 2026

What is CVE-2026-2243?

A vulnerability has been identified in QEMU that allows an attacker to exploit a specially crafted VMDK image, potentially leading to an out-of-bounds read. This flaw could result in a leakage of 12 bytes of sensitive information or even cause a denial of service (DoS) condition. Ensuring the implementation of security updates and mitigations is crucial to protect against potential attacks leveraging this vulnerability.

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References

https://access.redhat.com/security/cve/CVE-2026-2243
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2440934
issue-trackingx_refsource_REDHAT

CVSS V3.1

Score:
5.1
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Red Hat would like to thank Halil Oktay (oblivionsage) for reporting this issue.
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