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CVE-2016-9104

18
FAUCET Score

CVE-2016-9104 describes multiple integer overflow vulnerabilities in QEMU's v9fs_xattr_read and v9fs_xattr_write functions, impacting various QEMU and Debian/openSUSE QEMU distributions. These flaws allow a local guest OS administrator to trigger an out-of-bounds access, leading to a denial of service (QEMU process crash). With a CVSS score of 4.4 (Medium), the vulnerability requires high privileges (PR:H) and local access (AV:L) to exploit, resulting in a high impact on availability (A:H) but no impact on confidentiality or integrity. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

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:*:*:*:*:*:*:*
42.2CPE matchmatch criteria
cpe:2.3:o:opensuse:leap:42.2:*:*:*:*:*:*:*

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
32.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
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 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-2016-9104Low

Qemu: 9pfs: integer overflow leading to OOB access

Oct 13, 2016

References

lists.opensuse.org / opensuse-updates/2016-12/msg00140.html
Mailing ListThird Party Advisory
lists.debian.org / debian-lts-announce/2018/11/msg00038.html
Mailing ListThird Party Advisory
lists.gnu.org / archive/html/qemu-devel/2016-10/msg02942.html
PatchThird Party Advisory
security.gentoo.org / glsa/201611-11
Third Party Advisory
openwall.com / lists/oss-security/2016/10/28/2
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2016/10/30/8
Mailing ListThird Party Advisory
securityfocus.com / bid/93956
Third Party AdvisoryVDB Entry