CVE-2021-26736 MEDIUM

CVE-2021-26736: ZApp Installer Privilege Escalation Vulnerabilities

Vendor Zscaler
Product Client Connector
Weakness CWE-20 · Input 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

Multiple vulnerabilities in the Zscaler Client Connector Installer and Uninstaller for Windows prior to 3.6 allowed execution of binaries from a low privileged path. 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