CVE-2020-11633 — Out-of-bounds Write in Client Connector

CWE-787 — Out-of-bounds Write3 documents3 sources
Severity
9.8CRITICALNVD
EPSS
1.1%
top 22.20%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Zscaler Client Connector
Timeline
PublishedJul 15
Latest updateMay 24

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 3.9 | Impact: 5.9

Affected Packages1 packages

▶NVDzscaler/client_connector< 2.1.2.81

🔴Vulnerability Details

2
GHSA
GHSA-4p36-pgfp-hv82: The Zscaler Client Connector for Windows prior to 2↗2022-05-24
▶
CVEList
CVE-2020-11633: The Zscaler Client Connector for Windows prior to 2↗2021-07-15
▶
CVE-2020-11633 — Out-of-bounds Write | cvebase