CVE-2026-89444

BIOS administrator password disclosure via kernel hex dump

Published Sep 11, 2026 · Updated Sep 11, 2026

Information disclosure in affected Linux kernels allows local users to read a Dell BIOS administrator password from the kernel log. The dell-wmi-sysman set_attribute() path places the current password in its request buffer, then passes the entire buffer to print_hex_dump_bytes(). Exposure requires a configured BIOS administrator password, a BIOS attribute update, and access to read kernel log data.

CVSS severityUnavailable
Unscored
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in affected Linux kernels allows local users to read a Dell BIOS administrator password from the kernel log. The dell-wmi-sysman set_attribute() path places the current password in its request buffer, then passes the entire buffer to print_hex_dump_bytes(). Exposure requires a configured BIOS administrator password, a BIOS attribute update, and access to read kernel log data.

The record

CVE
CVE-2026-89444
Published
Sep 11, 2026
Updated
Sep 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1552.001
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 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=5.11
  2. Affected versionversion=e8a60aa7404bfef37705da5607c97737073ac38d <22222f92b0a5116eb4aac4be81e7b770adfa32ee
  3. Affected versionversion=e8a60aa7404bfef37705da5607c97737073ac38d <83c80495e45eddf64c6525fb582d8db68f256b71
  4. Affected versionversion=e8a60aa7404bfef37705da5607c97737073ac38d <ceeee18c927958b74a04b92cf084fc496fa21e8b
  5. Affected versionversion=e8a60aa7404bfef37705da5607c97737073ac38d <eb73b9d51490bec4f73ac6efdba5ac535fcfee74

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.11; version=e8a60aa7404bfef37705da5607c97737073ac38d <22222f92b0a5116eb4aac4be81e7b770adfa32ee; version=e8a60aa7404bfef37705da5607c97737073ac38d <83c80495e45eddf64c6525fb582d8db68f256b71; version=e8a60aa7404bfef37705da5607c97737073ac38d <ceeee18c927958b74a04b92cf084fc496fa21e8b; version=e8a60aa7404bfef37705da5607c97737073ac38d <eb73b9d51490bec4f73ac6efdba5ac535fcfee74

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 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

T1552.001Unsecured Credentials: Credentials In Files

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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