CVE-2026-2243

Publication date 19 February 2026

Last updated 27 August 2026

Ubuntu priority

Cvss 3 Severity Score

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).

Status

Show unmaintained releases

Package	Ubuntu Release	Status
qemu	26.10 stonking	Vulnerable
	26.04 LTS resolute	Vulnerable
	25.10 questing	Fixed in 1:10.1.0+ds-5ubuntu2.6
	24.04 LTS noble	Fixed in 1:8.2.2+ds-0ubuntu1.16
	22.04 LTS jammy	Fixed in 1:6.2+dfsg-2ubuntu6.30
	20.04 LTS focal	Fixed in 1:4.2-3ubuntu6.30+esm1
	18.04 LTS bionic	Fixed in 1:2.11+dfsg-1ubuntu7.42+esm5
	16.04 LTS xenial	Fixed in 1:2.5+dfsg-5ubuntu10.51+esm4
	14.04 LTS trusty	Fixed in 2.0.0+dfsg-2ubuntu1.47+esm6
qemu-hwe	26.10 stonking	Vulnerable
	26.04 LTS resolute	Vulnerable
	24.04 LTS noble	Not in release
	22.04 LTS jammy	Not in release

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
qemu	Upstream: 86b5130

Severity score breakdown

CVSS version: CVSS v3.0

Base score 5.1 · Medium

Base metrics

Parameter	Value
Attack vector	Local
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality impact	Low
Integrity impact	None
Availability impact	Low

Scores

Parameter	Value
Base score	5.1 · Medium
Exploitability score	-
Impact score	-

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

References

Related Ubuntu Security Notices (USN)

USN-8161-1
QEMU vulnerabilities
9 April 2026

USN-8412-1
QEMU vulnerabilities
9 June 2026