HOMEVULNERABILITIESCVE-2026-31595
MEDIUM

CVE-2026-31595

Published: April 24, 2026· Updated: Apr 29, 2026

5.5
CVSS v3.1
EPSS:0.02%probability of exploitation in 30 daysPercentile:4.8th

Official Description

In the Linux kernel, the following vulnerability has been resolved:

PCI: endpoint: pci-epf-vntb: Stop cmd_handler work in epf_ntb_epc_cleanup

Disable the delayed work before clearing BAR mappings and doorbells to

avoid running the handler after resources have been torn down.

Unable to handle kernel paging request at virtual address ffff800083f46004

[...]

Internal error: Oops: 0000000096000007 [#1] SMP

[...]

Call trace:

epf_ntb_cmd_handler+0x54/0x200 [pci_epf_vntb] (P)

process_one_work+0x154/0x3b0

worker_thread+0x2c8/0x400

kthread+0x148/0x210

ret_from_fork+0x10/0x20

NVD Source

Technical Analysis

CVE-2026-31595 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 5.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Vendors & Products

Linux1 product
linux kernel
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://git.kernel.org/stable/c/5999067140c67530a6cb6f41a8471596e60452cb
PATCHhttps://git.kernel.org/stable/c/6773cc24c004930903a57761132c1e7728907f8f
PATCHhttps://git.kernel.org/stable/c/9921cce25bfe4021f6e55ca995351eb967165297
PATCHhttps://git.kernel.org/stable/c/ceb73484e7204f661f770069ecdf35f6e941879c
PATCHhttps://git.kernel.org/stable/c/d799984233a50abd2667a7d17a9a710a3f10ebe2
PATCHhttps://git.kernel.org/stable/c/fbb6c353fa2fb5f5f990eda034a1074b0356127e

All References (6)

→
https://git.kernel.org/stable/c/5999067140c67530a6cb6f41a8471596e60452cbPatch
→
https://git.kernel.org/stable/c/6773cc24c004930903a57761132c1e7728907f8fPatch
→
https://git.kernel.org/stable/c/9921cce25bfe4021f6e55ca995351eb967165297Patch
→
https://git.kernel.org/stable/c/ceb73484e7204f661f770069ecdf35f6e941879cPatch
→
https://git.kernel.org/stable/c/d799984233a50abd2667a7d17a9a710a3f10ebe2Patch
→
https://git.kernel.org/stable/c/fbb6c353fa2fb5f5f990eda034a1074b0356127ePatch

Quick Facts

CVE IDCVE-2026-31595
CVSS Score5.5 / 10
SeverityMEDIUM
CISA KEVNo
EPSS (30d)0.02%
Affected1 vendor
PublishedApr 24, 2026

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-31595 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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