CVE-2025-22076

Local filesystem disruption via missing shutdown checks

Published Apr 16, 2025 · Updated May 11, 2026

Improper shutdown handling in Linux exFAT allows local users to continue file operations after removing a mounted backing device. The exFAT read_iter, write_iter, splice_read, and mmap paths omit the shutdown-state check, so requests proceed instead of returning an error after shutdown. Reachability requires local ability to remove an in-use device, and the resulting condition affects availability without reported data disclosure or modification.

CVSS severity5.5
Medium
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

Improper shutdown handling in Linux exFAT allows local users to continue file operations after removing a mounted backing device. The exFAT read_iter, write_iter, splice_read, and mmap paths omit the shutdown-state check, so requests proceed instead of returning an error after shutdown. Reachability requires local ability to remove an in-use device, and the resulting condition affects availability without reported data disclosure or modification.

The record

CVE
CVE-2025-22076
Published
Apr 16, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
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

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=6.12
  2. Affected versionversion=f761fcdd289d07e8547fef7ac76c3760fc7803f2 <47e35366bc6fa3cf189a8305bce63992495f3efa
  3. Affected versionversion=f761fcdd289d07e8547fef7ac76c3760fc7803f2 <4a9595eb024b8319957c178be3cdeed613ac0795
  4. Affected versionversion=f761fcdd289d07e8547fef7ac76c3760fc7803f2 <539147585ca453db6e3d7a5cf3b9c9690513762d
  5. Affected versionversion=f761fcdd289d07e8547fef7ac76c3760fc7803f2 <e41e33eb795cb9c1ead6ac627d8710546fac6e81

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.12; version=f761fcdd289d07e8547fef7ac76c3760fc7803f2 <47e35366bc6fa3cf189a8305bce63992495f3efa; version=f761fcdd289d07e8547fef7ac76c3760fc7803f2 <4a9595eb024b8319957c178be3cdeed613ac0795; version=f761fcdd289d07e8547fef7ac76c3760fc7803f2 <539147585ca453db6e3d7a5cf3b9c9690513762d; version=f761fcdd289d07e8547fef7ac76c3760fc7803f2 <e41e33eb795cb9c1ead6ac627d8710546fac6e81

Published CVSS scores

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

No sourced classifications are available.

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

See the directory against your own environment.

Your stack

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