CVE-2026-80711

Local information disclosure via uninitialized battery status

Published Aug 28, 2026 · Updated Aug 28, 2026

Use of an uninitialized value in Linux 6.7 allows local users to read an uninitialized value through the MAX17040 battery status. max17040_get_property() ignores -ENODEV from power_supply_get_property_from_supplier() and returns success without initializing the STATUS output. Exposure requires a MAX17040 fuel gauge with no charger supplier relationship in firmware, and the disclosed value is limited to the battery status response.

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

What happened

Use of an uninitialized value in Linux 6.7 allows local users to read an uninitialized value through the MAX17040 battery status. max17040_get_property() ignores -ENODEV from power_supply_get_property_from_supplier() and returns success without initializing the STATUS output. Exposure requires a MAX17040 fuel gauge with no charger supplier relationship in firmware, and the disclosed value is limited to the battery status response.

The record

CVE
CVE-2026-80711
Published
Aug 28, 2026
Updated
Aug 28, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Aug 28, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 28, 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=6.7
  2. Affected versionversion=f4b782af61ae7bbf93008d5809b0e3a8ac2bb88e <725668c6b6aa3971fe850659102c250d0d676e18
  3. Affected versionversion=f4b782af61ae7bbf93008d5809b0e3a8ac2bb88e <91ac995a6f4ddf4f92b231b080544abf23a9b871
  4. Affected versionversion=f4b782af61ae7bbf93008d5809b0e3a8ac2bb88e <b039f13e095d28a64ca6b21d0ee5440d8b048f37
  5. Affected versionversion=f4b782af61ae7bbf93008d5809b0e3a8ac2bb88e <ee2ea0c452edc0930e7395b080dccd5a1cb965e1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=6.7; version=f4b782af61ae7bbf93008d5809b0e3a8ac2bb88e <725668c6b6aa3971fe850659102c250d0d676e18; version=f4b782af61ae7bbf93008d5809b0e3a8ac2bb88e <91ac995a6f4ddf4f92b231b080544abf23a9b871; version=f4b782af61ae7bbf93008d5809b0e3a8ac2bb88e <b039f13e095d28a64ca6b21d0ee5440d8b048f37; version=f4b782af61ae7bbf93008d5809b0e3a8ac2bb88e <ee2ea0c452edc0930e7395b080dccd5a1cb965e1

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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

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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