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CVE-2017-9059

20
FAUCET Score

CVE-2017-9059 is a denial-of-service vulnerability affecting the NFSv4 implementation in the Linux kernel up to version 4.11.1. A local attacker can exploit this by unmounting an NFSv4 filesystem, leading to resource consumption due to improper channel callback shutdown. Rated Medium severity (CVSS 5.5), it requires local access and has a high impact on availability. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.11.1CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.5MEDIUM

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.37%
Probability of exploitation in next 30 days
EPSS Percentile
29.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0037 is in the 85th percentile among its peer group of 15,940 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 (2)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2017-9059Moderate

kernel: Module reference leak due to improper shut down of callback channel on umount

Apr 26, 2017

References

git.kernel.org / cgit/linux/kernel/git/torvalds/linux.git/commit
Issue TrackingPatchThird Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingPatch
github.com / torvalds/linux/commit/c70422f760c120480fee4de6c38804c72aa26bc1
Issue TrackingPatchThird Party Advisory
spinics.net / lists/linux-nfs/msg63334.html
Mailing ListPatchThird Party Advisory
securityfocus.com / bid/98551