CVE-2025-22023

Memory corruption via premature transfer-descriptor completion

Published Apr 16, 2025 · Updated May 11, 2026

Use-after-free in the Linux xHCI driver causes memory corruption during rare Stopped - Length Invalid USB event handling. The ring handler skips every pending isochronous transfer descriptor when the event does not match a descriptor, returning buffers before hardware finishes using them. The condition requires an xHCI controller and a hardware event sequence that cannot be intentionally invoked and was not reproduced; consequences include isochronous data loss and hardware use-after-free.

CVSS severity7.8
High
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in the Linux xHCI driver causes memory corruption during rare Stopped - Length Invalid USB event handling. The ring handler skips every pending isochronous transfer descriptor when the event does not match a descriptor, returning buffers before hardware finishes using them. The condition requires an xHCI controller and a hardware event sequence that cannot be intentionally invoked and was not reproduced; consequences include isochronous data loss and hardware use-after-free.

The record

CVE
CVE-2025-22023
Published
Apr 16, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-416
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 16, 2025CVE publishedPublication date reported by the CVE source.
  2. May 11, 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=6.11
  2. Affected versionversion=d56b0b2ab142940b06eac56dcb3ab1ab88df38a2 <49cf6f5293aeb706dd672608478336a003f37df6
  3. Affected versionversion=d56b0b2ab142940b06eac56dcb3ab1ab88df38a2 <58d0a3fab5f4fdc112c16a4c6d382f62097afd1c
  4. Affected versionversion=d56b0b2ab142940b06eac56dcb3ab1ab88df38a2 <6af20ac254cbd0e1178a3542767c9308e209eee5
  5. Affected versionversion=d56b0b2ab142940b06eac56dcb3ab1ab88df38a2 <de9e78167f760a699806793d7c987239e4f6c8c3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.11; version=d56b0b2ab142940b06eac56dcb3ab1ab88df38a2 <49cf6f5293aeb706dd672608478336a003f37df6; version=d56b0b2ab142940b06eac56dcb3ab1ab88df38a2 <58d0a3fab5f4fdc112c16a4c6d382f62097afd1c; version=d56b0b2ab142940b06eac56dcb3ab1ab88df38a2 <6af20ac254cbd0e1178a3542767c9308e209eee5; version=d56b0b2ab142940b06eac56dcb3ab1ab88df38a2 <de9e78167f760a699806793d7c987239e4f6c8c3

Published CVSS scores

7.8Canonical UbuntuCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
5.5Amazon LinuxCVSS: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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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

CWE-416Use After Free

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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