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CVE-2016-1568

27
FAUCET Score

CVE-2016-1568 is a use-after-free vulnerability in QEMU's IDE AHCI Emulation, affecting Debian and Red Hat distributions. A guest OS user can trigger this flaw with an invalid AHCI Native Command Queuing (NCQ) AIO command, leading to a denial of service or potentially arbitrary code execution. With a CVSS v3.1 score of 8.8 (High), it presents a significant risk due to its local attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. Despite its severity, there is no evidence of active exploitation, no public exploit code (Metasploit, Nuclei, ExploitDB), and minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.5.1.1CPE matchmatch criteria
cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:a:redhat:openstack:6.0:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:a:redhat:openstack:7.0:*:*:*:*:*:*:*
5.0CPE matchmatch criteria
cpe:2.3:a:redhat:openstack:5.0:*:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:a:redhat:virtualization:3.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.0
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.53%
Probability of exploitation in next 30 days
EPSS Percentile
41.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0053 is in the 81st percentile among its peer group of 16,994 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (7)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7Fixed in: qemu-kvm-rhev-10:2.3.0-31.el7_2.7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7Fixed in: qemu-kvm-rhev-10:2.3.0-31.el7_2.7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7Fixed in: qemu-kvm-rhev-10:2.3.0-31.el7_2.7
View patch
redhatpatch availablevia redhat_api
Product: RHEV 3.6 For IBM Power SystemsFixed in: qemu-kvm-rhev-10:2.3.0-31.el7_2.7
View patch
redhatpatch availablevia redhat_api
Product: RHEV 3.X Hypervisor and Agents for RHEL-7Fixed in: qemu-kvm-rhev-10:2.3.0-31.el7_2.7
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: qemu-kvm
redhatno patchvia redhat_api
Product: Red Hat OpenStack Platform 8 (Liberty)Fixed in: qemu-kvm-rhev

Vendor Advisories (1)

redhatCVE-2016-1568Low

Qemu: ide: ahci use-after-free vulnerability in aio port commands

Jan 8, 2016

References

git.qemu.org
rhn.redhat.com / errata/RHSA-2016-0084.html
Third Party Advisory
rhn.redhat.com / errata/RHSA-2016-0086.html
Third Party Advisory
rhn.redhat.com / errata/RHSA-2016-0087.html
Third Party Advisory
rhn.redhat.com / errata/RHSA-2016-0088.html
Third Party Advisory
security.gentoo.org / glsa/201602-01
Third Party Advisory
debian.org / security/2016/dsa-3469
Third Party Advisory
debian.org / security/2016/dsa-3470
Third Party Advisory
debian.org / security/2016/dsa-3471
Third Party Advisory
openwall.com / lists/oss-security/2016/01/09/1
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2016/01/09/2
Mailing ListThird Party Advisory
securityfocus.com / bid/80191
Third Party AdvisoryVDB Entry
securitytracker.com / id/1034859
Third Party AdvisoryVDB Entry