CVE-2021-26735 MEDIUM

CVE-2021-26735: Untrusted Search Path While Executing REG DELETE by Uninstaller

Vendor Zscaler

Product Client Connector

Weakness CWE-346 · Origin validation

Published October 23, 2023

Last update February 27, 2025

View on NVD All CVEs

CVSS base score

6.7/10

Attack vector Local

Attack complexity High

Privileges required Low

User interaction Required

Confidentiality High

Integrity High

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

The Zscaler Client Connector Installer and Unsintallers for Windows prior to 3.6 had an unquoted search path vulnerability. A local adversary may be able to execute code with SYSTEM privileges.

Key dates

02Disclosure timeline

October 23, 2023 CVE published

February 27, 2025 Record updated

External resources

03References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2021-26735 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/346.html