CVE-2025-37892

Local service hang via unchecked OOB-read failure

Published May 20, 2025 · Updated May 11, 2026

Unchecked return-value handling in the Linux kernel MTD INFTL driver allows local users to cause a service hang through failed OOB reads. The INFTL_findwriteunit() path ignores an inftl_read_oob() failure, retains the current sector status, and continues its search loop instead of assigning SECTOR_IGNORE and exiting. Triggering the path requires elevated local privileges and use of the INFTL flash-translation driver; the resulting loop interrupts kernel service.

CVSS severity7.8
High
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unchecked return-value handling in the Linux kernel MTD INFTL driver allows local users to cause a service hang through failed OOB reads. The INFTL_findwriteunit() path ignores an inftl_read_oob() failure, retains the current sector status, and continues its search loop instead of assigning SECTOR_IGNORE and exiting. Triggering the path requires elevated local privileges and use of the INFTL flash-translation driver; the resulting loop interrupts kernel service.

The record

CVE
CVE-2025-37892
Published
May 20, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 20, 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=2.6.18
  2. Affected versionversion=8593fbc68b0df1168995de76d1af38eb62fd6b62 <0300e751170cf80c05ca1a762a7b449e8ca6b693
  3. Affected versionversion=8593fbc68b0df1168995de76d1af38eb62fd6b62 <114d94f095aa405fa9a51484c4be34846d7bb386
  4. Affected versionversion=8593fbc68b0df1168995de76d1af38eb62fd6b62 <1c22356dfb041e5292835c9ff44d5f91bef8dd18
  5. Affected versionversion=8593fbc68b0df1168995de76d1af38eb62fd6b62 <5479a6af3c96f73bec2d2819532b6d6814f52dd6
  6. Affected versionversion=8593fbc68b0df1168995de76d1af38eb62fd6b62 <6af3b92b1c0b58ca281d0e1501bad2567f73c1a5
  7. Affected versionversion=8593fbc68b0df1168995de76d1af38eb62fd6b62 <7772621041ee78823ccc5f1fe38f6faa22af7023
  8. Affected versionversion=8593fbc68b0df1168995de76d1af38eb62fd6b62 <b828d394308e8e00df0a6f57e7dabae609bb8b7b
  9. Affected versionversion=8593fbc68b0df1168995de76d1af38eb62fd6b62 <d027951dc85cb2e15924c980dc22a6754d100c7c
  10. Affected versionversion=8593fbc68b0df1168995de76d1af38eb62fd6b62 <e7d6ceff95c55297f0ee8f9dbc4da5c558f30e9e

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=2.6.18; version=8593fbc68b0df1168995de76d1af38eb62fd6b62 <0300e751170cf80c05ca1a762a7b449e8ca6b693; version=8593fbc68b0df1168995de76d1af38eb62fd6b62 <114d94f095aa405fa9a51484c4be34846d7bb386; version=8593fbc68b0df1168995de76d1af38eb62fd6b62 <1c22356dfb041e5292835c9ff44d5f91bef8dd18; version=8593fbc68b0df1168995de76d1af38eb62fd6b62 <5479a6af3c96f73bec2d2819532b6d6814f52dd6; version=8593fbc68b0df1168995de76d1af38eb62fd6b62 <6af3b92b1c0b58ca281d0e1501bad2567f73c1a5; version=8593fbc68b0df1168995de76d1af38eb62fd6b62 <7772621041ee78823ccc5f1fe38f6faa22af7023; version=8593fbc68b0df1168995de76d1af38eb62fd6b62 <b828d394308e8e00df0a6f57e7dabae609bb8b7b; version=8593fbc68b0df1168995de76d1af38eb62fd6b62 <d027951dc85cb2e15924c980dc22a6754d100c7c; version=8593fbc68b0df1168995de76d1af38eb62fd6b62 <e7d6ceff95c55297f0ee8f9dbc4da5c558f30e9e

Published CVSS scores

7.8NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.0Amazon LinuxCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8CanonicalCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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