CVE-2021-26738 HIGH

CVE-2021-26738: Privilege Escalation for ZCC macOS via PATH Variable

Vendor Zscaler

Product Client Connector

Weakness CWE-426

Published October 23, 2023

Last update February 27, 2025

View on NVD All CVEs

CVSS base score

7.8/10

Attack vector Local

Attack complexity Low

Privileges required Low

User interaction None

Confidentiality High

Integrity High

CVSS vector

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

What the vulnerability does

01Description

Zscaler Client Connector for macOS prior to 3.7 had an unquoted search path vulnerability via the PATH variable. A local adversary may be able to execute code with root 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-2021-26738 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/426.html