CVE-2025-8421

Service interruption via privileged log redirection

Published Nov 12, 2025 · Updated Nov 12, 2025

Improper default permissions in Lenovo Dock Manager before 1.6.5.2 allow local users to redirect log output written with elevated privileges. During installation, improper default permissions let a local user redirect a privileged logging operation, but Lenovo has not disclosed the affected path or redirection primitive. Exploitation requires authenticated local access and passive interaction with an installation; Lenovo identifies denial of service but not its failure mode.

CVSS severity5.2
Medium
EPSS probability0.10%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper default permissions in Lenovo Dock Manager before 1.6.5.2 allow local users to redirect log output written with elevated privileges. During installation, improper default permissions let a local user redirect a privileged logging operation, but Lenovo has not disclosed the affected path or redirection primitive. Exploitation requires authenticated local access and passive interaction with an installation; Lenovo identifies denial of service but not its failure mode.

The record

CVE
CVE-2025-8421
Published
Nov 12, 2025
Updated
Nov 12, 2025
Vendor
Lenovo
Product
Lenovo Dock Manager
Classifications
CWE-276
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 12, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 12, 2025Record 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=0 <1.6.5.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Lenovo · Lenovo Dock Managerversion=0 <1.6.5.2

Published CVSS scores

6.6Lenovo Group Ltd.CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H
5.2Lenovo Group Ltd.CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N

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)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-276Incorrect Default Permissions

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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