CVE-2026-4134

Local privilege escalation via uncontrolled search path

Published Apr 15, 2026 · Updated Apr 15, 2026

Uncontrolled search path in Lenovo Software Fix before 7.5.5.19 allows local users to execute code with elevated privileges during installation. Lenovo has not disclosed the affected installer component or how its search operation resolves attacker-controlled content. Exploitation requires local low-privileged access and active interaction during installation; successful execution gains elevated privileges.

CVSS severity7.0
High
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

Uncontrolled search path in Lenovo Software Fix before 7.5.5.19 allows local users to execute code with elevated privileges during installation. Lenovo has not disclosed the affected installer component or how its search operation resolves attacker-controlled content. Exploitation requires local low-privileged access and active interaction during installation; successful execution gains elevated privileges.

The record

CVE
CVE-2026-4134
Published
Apr 15, 2026
Updated
Apr 15, 2026
Vendor
Lenovo
Product
Software Fix
Classifications
CWE-427, T1574
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 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=0 <7.5.5.19

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Lenovo · Software Fixversion=0 <7.5.5.19

Published CVSS scores

7.3Lenovo Group Ltd.CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
7.0Lenovo Group Ltd.CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:H/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-427Uncontrolled Search Path Element
T1574Hijack Execution Flow

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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