CVE & CISA-KEV Catalog

CVE-2016-1568

HIGH

8.8

CVSS v3

Description

Use-after-free vulnerability in hw/ide/ahci.c in QEMU, when built with IDE AHCI Emulation support, allows guest OS users to cause a denial of service (instance crash) or possibly execute arbitrary code via an invalid AHCI Native Command Queuing (NCQ) AIO command.

CWE-416Use After Free

How to fix

Remediation Available

qemuDebian

Fixed in:1:2.5+dfsg-2CVE-2016-1568

Fixed in:1:2.5+dfsg-2CVE-2016-1568

Fixed in:1:2.5+dfsg-2CVE-2016-1568

Fixed in:1:2.5+dfsg-2CVE-2016-1568

qemuUbuntu

Fixed in:2.0.0+dfsg-2ubuntu1.22USN-2891-1

qemu-systemUbuntu

Fixed in:2.0.0+dfsg-2ubuntu1.22USN-2891-1

qemu-system-aarch64Ubuntu

Fixed in:2.0.0+dfsg-2ubuntu1.22USN-2891-1

qemu-system-armUbuntu

Fixed in:2.0.0+dfsg-2ubuntu1.22USN-2891-1

qemu-system-mipsUbuntu

Fixed in:2.0.0+dfsg-2ubuntu1.22USN-2891-1

qemu-system-miscUbuntu

Fixed in:2.0.0+dfsg-2ubuntu1.22USN-2891-1

qemu-system-ppcUbuntu

Fixed in:2.0.0+dfsg-2ubuntu1.22USN-2891-1

qemu-system-sparcUbuntu

Fixed in:2.0.0+dfsg-2ubuntu1.22USN-2891-1

qemu-system-x86Ubuntu

Fixed in:2.0.0+dfsg-2ubuntu1.22USN-2891-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.53%probability of exploitation in 30 days

41stpercentile

Moderate risk: more likely to be exploited than 41% of all known CVEs.

References

Third-Party Advisory12

Other references1

git.qemu.org

Related Vulnerabilities

Other CWE-416 (Use After Free) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2019-0708	Critical	9.8	100%	KEV + Ransom	-
CVE-2021-31166	Critical	9.8	100%	KEV	Fix
CVE-2015-5119	Critical	9.8	99%	KEV	-
CVE-2010-3962	High	8.1	97%	KEV	-
CVE-2015-0313	Critical	9.8	96%	KEV	Fix
CVE-2017-9798	High	7.5	95%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.