CVE-2026-23015

Local service interruption via leaked USB reference

Published Jan 31, 2026 · Updated Jan 31, 2026

Reference leak in gpio_mpsse_probe() in Linux Kernel 6.13 through 6.18.5 allows local users to interrupt service via failed MPSSE probes. gpio_mpsse_probe() takes a USB-device reference with usb_get_dev() but its error paths return without releasing that reference. Exploitation requires local access and repeated MPSSE USB probe failures; the reported impact is service interruption without data exposure or modification.

CVSS severity5.5
Medium
EPSS probability0.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reference leak in gpio_mpsse_probe() in Linux Kernel 6.13 through 6.18.5 allows local users to interrupt service via failed MPSSE probes. gpio_mpsse_probe() takes a USB-device reference with usb_get_dev() but its error paths return without releasing that reference. Exploitation requires local access and repeated MPSSE USB probe failures; the reported impact is service interruption without data exposure or modification.

The record

CVE
CVE-2026-23015
Published
Jan 31, 2026
Updated
Jan 31, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 31, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 31, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=6.13
  2. Affected versionversion=c46a74ff05c0ac76ba11ef21c930c3b447abf31a <1e876e5a0875e71e34148c9feb2eedd3bf6b2b43
  3. Affected versionversion=c46a74ff05c0ac76ba11ef21c930c3b447abf31a <7ea26e6dcabc270433b6ded2a1aee85b215d1b28

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=6.13; version=c46a74ff05c0ac76ba11ef21c930c3b447abf31a <1e876e5a0875e71e34148c9feb2eedd3bf6b2b43; version=c46a74ff05c0ac76ba11ef21c930c3b447abf31a <7ea26e6dcabc270433b6ded2a1aee85b215d1b28

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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