CVE-2026-2243 — Out-of-bounds Read in Qemu

CWE-125 — Out-of-bounds Read9 documents9 sources
Severity
5.1MEDIUMNVD
EPSS
0.0%
top 95.52%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
QemuDebian QemuMsrc Azl3 Qemu 8.2.0-27 ON Azure Linux 3.0+1 more
Timeline
PublishedFeb 19
Latest updateApr 9

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).

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:LExploitability: 2.5 | Impact: 2.5

Affected Packages4 packages

▶debiandebian/qemu< qemu 1:10.2.2+ds-1 (forky)
▶Debianqemu/qemu< 1:10.2.2+ds-1

🔴Vulnerability Details

2
OSV
CVE-2026-2243: A flaw was found in QEMU↗2026-02-19
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GHSA
GHSA-cw9w-w7fx-35q6: A flaw was found in QEMU↗2026-02-19
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📋Vendor Advisories

4
Ubuntu
QEMU vulnerabilities↗2026-04-09
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Red Hat
qemu-kvm: Heap buffer out-of-bounds read in VMDK compressed grain parsing↗2026-02-10
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Microsoft
Qemu-kvm: heap buffer out-of-bounds read in vmdk compressed grain parsing↗2026-02-10
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Debian
CVE-2026-2243: qemu - A flaw was found in QEMU. A specially crafted VMDK image could trigger an out-of...↗2026
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🕵️Threat Intelligence

1
Wiz
CVE-2026-2243 Impact, Exploitability, and Mitigation Steps | Wiz↗
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💬Community

1
Bugzilla
CVE-2026-2243 qemu-kvm: Heap buffer out-of-bounds read in VMDK compressed grain parsing↗2026-02-19
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