CVE-2026-64143

Battery damage via forced unsupported charging limit

Published Jul 19, 2026 · Updated Jul 19, 2026

Improper charging control in Linux Kernel 6.19 allows local users to permanently damage batteries on some older Uniwill laptops. The uniwill-acpi driver lets the force module parameter bypass its DMI model check and exposes a charging-threshold interface even when the device firmware does not safely implement that control. Exploitation requires local access with permission to load or configure the driver on affected hardware; the resulting battery damage can be permanent.

CVSS severity5.5
Medium
EPSS probability0.11%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper charging control in Linux Kernel 6.19 allows local users to permanently damage batteries on some older Uniwill laptops. The uniwill-acpi driver lets the force module parameter bypass its DMI model check and exposes a charging-threshold interface even when the device firmware does not safely implement that control. Exploitation requires local access with permission to load or configure the driver on affected hardware; the resulting battery damage can be permanent.

The record

CVE
CVE-2026-64143
Published
Jul 19, 2026
Updated
Jul 19, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 19, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 19, 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=6.19
  2. Affected versionversion=d050479693bb91da5a0e305ca9dd59f4c0b55dd3 <26cbe119f99c86dcb4a0136d2bc73c0c716d80e4
  3. Affected versionversion=d050479693bb91da5a0e305ca9dd59f4c0b55dd3 <c832a00c9b929b9ad26772833d425f520b2e09cd

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=6.19; version=d050479693bb91da5a0e305ca9dd59f4c0b55dd3 <26cbe119f99c86dcb4a0136d2bc73c0c716d80e4; version=d050479693bb91da5a0e305ca9dd59f4c0b55dd3 <c832a00c9b929b9ad26772833d425f520b2e09cd

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/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

T1499Endpoint Denial of Service

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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