CVE-2025-22104

Kernel-memory disclosure or crash via misaligned hex dump

Published Apr 16, 2025 · Updated Sep 2, 2026

Out-of-bounds read in Linux kernel 4.5 through 6.14.1 allows local users to disclose kernel memory or crash the system via ibmvnic login. The ibmvnic login dump casts each buffer chunk to an eight-byte value, so a final chunk shorter than eight bytes is read past its allocation. Exploitation requires low-privileged local access and execution of the affected driver path; no integrity impact is reported.

CVSS severity7.1
High
EPSS probability0.23%
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 4.5 through 6.14.1 allows local users to disclose kernel memory or crash the system via ibmvnic login. The ibmvnic login dump casts each buffer chunk to an eight-byte value, so a final chunk shorter than eight bytes is read past its allocation. Exploitation requires low-privileged local access and execution of the affected driver path; no integrity impact is reported.

The record

CVE
CVE-2025-22104
Published
Apr 16, 2025
Updated
Sep 2, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-125
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 16, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 2, 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=032c5e82847a2214c3196a90f0aeba0ce252de58 <005fee039dd845122d313ac8f2122b0d09dc5d7b
  2. Affected versionversion=032c5e82847a2214c3196a90f0aeba0ce252de58 <19efa170e01207c8ada726f3f6c65b31fcba2a73
  3. Affected versionversion=032c5e82847a2214c3196a90f0aeba0ce252de58 <9bc078818ec76344c2e06b81d7aee2df3adecfbf
  4. Affected versionversion=032c5e82847a2214c3196a90f0aeba0ce252de58 <ae6b1d6c1acee3a2000394d83ec9f1028321e207
  5. Affected versionversion=032c5e82847a2214c3196a90f0aeba0ce252de58 <d93a6caab5d7d9b5ce034d75b1e1e993338e3852
  6. Affected versionversion=4.5

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=032c5e82847a2214c3196a90f0aeba0ce252de58 <005fee039dd845122d313ac8f2122b0d09dc5d7b; version=032c5e82847a2214c3196a90f0aeba0ce252de58 <19efa170e01207c8ada726f3f6c65b31fcba2a73; version=032c5e82847a2214c3196a90f0aeba0ce252de58 <9bc078818ec76344c2e06b81d7aee2df3adecfbf; version=032c5e82847a2214c3196a90f0aeba0ce252de58 <ae6b1d6c1acee3a2000394d83ec9f1028321e207; version=032c5e82847a2214c3196a90f0aeba0ce252de58 <d93a6caab5d7d9b5ce034d75b1e1e993338e3852; version=4.5

Published CVSS scores

7.1CanonicalCVSS: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

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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