VULNERABILITY INTELLIGENCE

CVE-2020-11633

CVSS score9.8 CRITICAL
EPSS probability1.89%
CISA KEVNot currently listed
Published2021-07-15
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

The Zscaler Client Connector for Windows prior to 2.1.2.74 had a stack based buffer overflow when connecting to misconfigured TLS servers. An adversary would potentially have been able to execute arbitrary code with system privileges.

Weakness classification

  • nvd@nist.gov: CWE-787

Primary references