CVE-2020-11633 describes a critical stack-based buffer overflow vulnerability in Zscaler Client Connector for Windows versions prior to 2.1.2.74, occurring when connecting to misconfigured TLS servers. This vulnerability carries a CVSS score of 9.8 (CRITICAL), indicating a network-exploitable flaw with low attack complexity that could lead to complete compromise of confidentiality, integrity, and availability, potentially allowing arbitrary code execution with system privileges. Despite its high severity, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 2.1.2.81CPE matchmatch criteria | cpe:2.3:a:zscaler:client_connector:*:*:*:*:*:windows:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.