Lenovo Software Fix prior 7.5.5.19 link following

CVSS Meta Temp Score
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CTI Interest Score
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7.1$0-$5k0.00

Summaryinfo

A vulnerability was found in Lenovo Software Fix. It has been rated as critical. Affected by this issue is some unknown functionality. This manipulation causes link following. This vulnerability is handled as CVE-2026-4135. It is possible to launch the attack on the local host. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Lenovo Software Fix. It has been declared as critical. Affected by this vulnerability is an unknown function. The manipulation with an unknown input leads to a link following vulnerability. The CWE definition for the vulnerability is CWE-59. The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

During an internal security assessment, a potential vulnerability was discovered in Lenovo Software Fix, that during installation could allow a local authenticated user to perform an arbitrary file write with elevated privileges.

The advisory is shared at support.lenovo.com. This vulnerability is known as CVE-2026-4135 since 03/13/2026. The exploitation appears to be easy. An attack has to be approached locally. Neither technical details nor an exploit are publicly available.

Upgrading to version 7.5.5.19 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-22925). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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License

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 7.2
VulDB Meta Temp Score: 7.1

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 6.6
CNA Vector (lenovo): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Link following
CWE: CWE-59
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Software Fix 7.5.5.19

Timelineinfo

03/13/2026 CVE reserved
04/15/2026 +32 days Advisory disclosed
04/15/2026 +0 days VulDB entry created
04/15/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: lenovo.com

Advisory: support.lenovo.com
Status: Confirmed

CVE: CVE-2026-4135 (🔒)
GCVE (CVE): GCVE-0-2026-4135
GCVE (VulDB): GCVE-100-357721
EUVD: 🔒

Entryinfo

Created: 04/15/2026 16:05
Updated: 04/15/2026 18:38
Changes: 04/15/2026 16:05 (74), 04/15/2026 18:38 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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