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CVE-2016-7423

18
FAUCET Score

CVE-2016-7423 describes a denial-of-service vulnerability in QEMU, specifically when configured with LSI SAS1068 Host Bus emulation. A local guest OS administrator can trigger an out-of-bounds write, leading to a QEMU process crash. This vulnerability has a CVSS score of 4.4 (Medium), indicating a low attack complexity and requiring high privileges, with the primary impact being system availability. There is no evidence of active exploitation, public exploit code, or significant community discussion, suggesting it is not a widely targeted or discussed vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.7.1CPE matchmatch criteria
cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

4.4MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
0.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.40%
Probability of exploitation in next 30 days
EPSS Percentile
32.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0040 is in the 81st percentile among its peer group of 3,720 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (2)

redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: qemu-kvm
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: qemu-kvm-rhev

Vendor Advisories (1)

redhatCVE-2016-7423Moderate

Qemu: scsi: mptsas: OOB access when freeing MPTSASRequest object

Sep 15, 2016

References

git.qemu.org
bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory
lists.gnu.org / archive/html/qemu-devel/2016-09/msg03604.html
Mailing ListPatchThird Party Advisory
security.gentoo.org / glsa/201611-11
Third Party Advisory
openwall.com / lists/oss-security/2016/09/16/11
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2016/09/16/5
Mailing ListThird Party Advisory
securityfocus.com / bid/92997
Third Party AdvisoryVDB Entry