Back to Database
Status published
High
CVE-2023-28793
Heap Based Buffer Overflow in Library
Vulnerability Description
Buffer overflow vulnerability in the signelf library used by Zscaler Client Connector on Linux allows Code Injection. This issue affects Zscaler Client Connector for Linux: before 1.3.1.6.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
THREAT MONITOR
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2023-28793
Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Paul Gerste & Thomas Chauchefoin, SonarSource
More from Zscaler
View All →CVE-2025-54983
Health check port on ZCC allows tunnel bypass
Medium
5.2
CVE-2025-54982
SAML 2.0 Public Key Validation Issue
Critical
9.6
CVE-2024-31127
MacOS Zscaler Client Connector Local Privilege Escalation
High
7.3
CVE-2024-23483
Local Privilege Escalation via lack of input validation
High
7
CVE-2024-23482
ZScalerService Local Privilege Escalation
High
7
Affected Vendor
Zscaler
View all reports →Affected Software
Client Connector
Vulnerable Versions:
0
Timeline
Official Publish:
October 23rd, 2023
Last Modified:
February 27th, 2025
Added to House:
July 22nd, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H