CVE-2026-72089

Kernel over-read and hang via malformed firmware log

Published Aug 15, 2026 · Updated Aug 15, 2026

Out-of-bounds read in the Linux kernel ivpu logger allows attackers to cause a kernel over-read or hang log processing via a malformed log. The fw_log_from_bo() path accepts a size smaller than header_size, so fw_log_print_buffer() underflows data_size; a zero size also prevents offset advancement. Reachability requires the ivpu driver and an Intel VPU firmware log with the malformed size relationship, while effects are bounded to excessive reads and stalled log handling.

CVSS severityUnavailable
Unscored
EPSS probability0.17%
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 the Linux kernel ivpu logger allows attackers to cause a kernel over-read or hang log processing via a malformed log. The fw_log_from_bo() path accepts a size smaller than header_size, so fw_log_print_buffer() underflows data_size; a zero size also prevents offset advancement. Reachability requires the ivpu driver and an Intel VPU firmware log with the malformed size relationship, while effects are bounded to excessive reads and stalled log handling.

The record

CVE
CVE-2026-72089
Published
Aug 15, 2026
Updated
Aug 15, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-125
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Aug 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 15, 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=6.6
  2. Affected versionversion=d4e4257afa6ed5205eda993180401fc2c20e4b60 <257321a1c036da417f5d9c47b95c7e58f62bf263
  3. Affected versionversion=d4e4257afa6ed5205eda993180401fc2c20e4b60 <5592a207e158b738d9c1d27f208dbbea13ae7606
  4. Affected versionversion=d4e4257afa6ed5205eda993180401fc2c20e4b60 <6920e62be4c969a68ce4ebc59da68c6cbc9512e5
  5. Affected versionversion=d4e4257afa6ed5205eda993180401fc2c20e4b60 <dc9a1cda2e46d0254730a6f93cfe48532895f33c
  6. Affected versionversion=d4e4257afa6ed5205eda993180401fc2c20e4b60 <ddb44baed257560f192b145ed36cf8c0a412de47

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=6.6; version=d4e4257afa6ed5205eda993180401fc2c20e4b60 <257321a1c036da417f5d9c47b95c7e58f62bf263; version=d4e4257afa6ed5205eda993180401fc2c20e4b60 <5592a207e158b738d9c1d27f208dbbea13ae7606; version=d4e4257afa6ed5205eda993180401fc2c20e4b60 <6920e62be4c969a68ce4ebc59da68c6cbc9512e5; version=d4e4257afa6ed5205eda993180401fc2c20e4b60 <dc9a1cda2e46d0254730a6f93cfe48532895f33c; version=d4e4257afa6ed5205eda993180401fc2c20e4b60 <ddb44baed257560f192b145ed36cf8c0a412de47

Published CVSS scores

No CVSS assessment is available in this record.

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)
VectorUnavailable
PrivilegesUnavailable
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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