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CVE-2016-7155

18
FAUCET Score

CVE-2016-7155 describes a denial-of-service vulnerability in QEMU's vmw_pvscsi.c component, affecting Debian Linux and QEMU installations. A local guest OS administrator can trigger an out-of-bounds access or infinite loop, leading to a QEMU process crash, by manipulating the page count for descriptor rings. Rated Medium severity (CVSS 4.4), this vulnerability requires high privileges (PR:H) and local access (AV:L) to exploit, resulting in high availability impact (A:H). There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.7.1CPE matchmatch criteria
cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

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
32.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0040 is in the 82nd 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 Advisories (1)

redhatCVE-2016-7155Moderate

Qemu: scsi: pvscsi: OOB read and infinite loop while setting descriptor rings

Aug 31, 2016

References

git.qemu.org
lists.debian.org / debian-lts-announce/2018/11/msg00038.html
Mailing ListThird Party Advisory
lists.gnu.org / archive/html/qemu-devel/2016-09/msg00050.html
PatchThird Party Advisory
openwall.com / lists/oss-security/2016/09/06/2
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2016/09/07/1
Mailing ListThird Party Advisory
securityfocus.com / bid/92772
Third Party AdvisoryVDB Entry