No exploitation reportedFix available

CVE-2017-8797

Q: Is CVE-2017-8797 actively exploited?

Active exploitation of CVE-2017-8797 has not been confirmed. Its EPSS score was 9.5% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2017-8797?

CVE-2017-8797 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

No exploitation reported by the sources we read.

Published2017-07-02
Fixed in4.11.3 · 4.9.30 · 4.4.70 · 4.1.40
WeaknessCWE-129

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

The NFSv4 server in the Linux kernel before 4.11.3 does not properly validate the layout type when processing the NFSv4 pNFS GETDEVICEINFO or LAYOUTGET operand in a UDP packet from a remote attacker. This type value is uninitialized upon encountering certain error conditions. This value is used as an array index for dereferencing, which leads to an OOPS and eventually a DoS of knfsd and a soft-lockup of the whole system.

Timeline

dates in UTC

2017-07-0217:29CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2017-8797?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2017-8797?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Linux linux kernel

Branch	Affected	Fixed in	Source
4.11	≥ 4.11, < 4.11.3	4.11.3	NVD
4.x	≥ 4.5, < 4.9.30	4.9.30	NVD
4.x	≥ 4.2, < 4.4.70	4.4.70	NVD
4.x	≥ 4.0, < 4.1.40	4.1.40	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Linux linux kernel to 4.11.3 · 4.9.30 · 4.4.70 · 4.1.40

Advisories and patches

git.kernel.orgPatch · Vendor Advisory
git.kernel.orgPatch · Vendor Advisory
www.kernel.orgRelease Notes · Vendor Advisory
www.openwall.comPatch
github.comPatch
github.comPatch

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.17.5read 2026-10-23
NVDCVSS 2.07.8read 2026-10-23
NVDweakness (CWE)CWE-129read 2026-10-23
FIRST EPSSEPSS score9.5 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published: 2017-07-02
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2017-8797?

Is CVE-2017-8797 actively exploited?

Active exploitation of CVE-2017-8797 has not been confirmed. Its EPSS score was 9.5% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2017-8797?

CVE-2017-8797 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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