CVE-2025-71306

Kernel-memory disclosure and crash via invalid container_of

Published May 27, 2026 · Updated May 27, 2026

Out-of-bounds read in Linux Kernel 6.14 through 6.19.3 allows local users to disclose kernel memory or crash the system during IMA appraisal. is_bprm_creds_for_exec passes a pointer to its stack-local file variable into ima_appraise_measurement, where container_of applies an invalid offset and reads outside that stack object. A low-privileged local process must reach an execution path subject to IMA appraisal; the bounded consequences are kernel-memory disclosure and a system crash.

CVSS severity7.1
High
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in Linux Kernel 6.14 through 6.19.3 allows local users to disclose kernel memory or crash the system during IMA appraisal. is_bprm_creds_for_exec passes a pointer to its stack-local file variable into ima_appraise_measurement, where container_of applies an invalid offset and reads outside that stack object. A low-privileged local process must reach an execution path subject to IMA appraisal; the bounded consequences are kernel-memory disclosure and a system crash.

The record

CVE
CVE-2025-71306
Published
May 27, 2026
Updated
May 27, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
CWE-125, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 27, 2026CVE publishedPublication date reported by the CVE source.
  2. May 27, 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=6.14
  2. Affected versionversion=95b3cdafd7cb74414070893445a9b731793f7b55 <377cae9851e8559e9d8b82a78c1ac0abeb18839c
  3. Affected versionversion=95b3cdafd7cb74414070893445a9b731793f7b55 <ab3d16da982a4ebb715d487dbf9dd66e3990d935

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=6.14; version=95b3cdafd7cb74414070893445a9b731793f7b55 <377cae9851e8559e9d8b82a78c1ac0abeb18839c; version=95b3cdafd7cb74414070893445a9b731793f7b55 <ab3d16da982a4ebb715d487dbf9dd66e3990d935

Published CVSS scores

7.1NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/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 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

CWE-125Out-of-bounds Read
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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