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CVE-2017-7377

21
FAUCET Score

CVE-2017-7377 describes a denial-of-service vulnerability in QEMU, specifically affecting the v9fs_create and v9fs_lcreate functions in hw/9pfs/9p.c. This flaw allows a privileged local guest OS user to exhaust file descriptors or memory by exploiting an already in-use fid, impacting QEMU and Debian Linux distributions. Rated with a CVSS score of 6.0 (Medium), the vulnerability requires high privileges on the guest OS (PR:H) and local access (AV:L), with a high impact on availability (A:H). The attack complexity is low (AC:L), but the scope is changed (S:C) indicating a potential impact beyond the immediate component. There is no evidence of active exploitation, nor are there any known public exploit codes available in Metasploit, Nuclei, or ExploitDB. Community discussion and media coverage for this CVE are minimal, suggesting a low level of public awareness or concern.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.8.1CPE matchmatch criteria
cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
2.9.0CPE matchmatch criteria
cpe:2.3:a:qemu:qemu:2.9.0:rc0:*:*:*:*:*:*
2.9.0CPE matchmatch criteria
cpe:2.3:a:qemu:qemu:2.9.0:rc1:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.0MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.5
Impact Score
4.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.38%
Probability of exploitation in next 30 days
EPSS Percentile
31.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0038 is in the 80th 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

Patch Available

Vendor Patches (1)

redhatpatch availablevia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2017-7377Low

Qemu: 9pfs: host memory leakage via v9fs_create

Mar 28, 2017

References

git.qemu-project.org
bugzilla.redhat.com / show_bug.cgi
Issue TrackingPatchThird Party Advisory
lists.debian.org / debian-lts-announce/2018/09/msg00007.html
Mailing ListThird Party Advisory
lists.gnu.org / archive/html/qemu-devel/2017-03/msg05449.html
PatchThird Party Advisory
security.gentoo.org / glsa/201706-03
Third Party Advisory
openwall.com / lists/oss-security/2017/04/03/2
Mailing ListPatchThird Party AdvisoryVDB Entry
securityfocus.com / bid/97319
Third Party AdvisoryVDB Entry