What is CVE-2023-28803?

CVE-2023-28803 is a medium-severity vulnerability in Zscaler Client Connector, classified under Authentication Bypass by Spoofing. CVSS score: 5.9/10. Published 2023-10-23.

How severe is CVE-2023-28803?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Vulnerability in Zscaler Client Connector

CVE-2023-28803

An authentication bypass by spoofing of a device with a synthetic IP address is possible in Zscaler Client Connector on Windows, allowing a functionality bypass. This issue affects Client Connector: before 3.9.

EPSS: 0.003 (17.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N.

Affected products

Zscaler Client Connector — versions 0
Zscaler Client_connector

Weakness classification (CWE)

CWE-290 — Authentication Bypass by Spoofing

References

cve@zscaler.com (Release Notes)

Frequently asked questions

What is CVE-2023-28803?: CVE-2023-28803 is a medium-severity vulnerability in Zscaler Client Connector, classified under Authentication Bypass by Spoofing. CVSS score: 5.9/10. Published 2023-10-23.
How severe is CVE-2023-28803?: Medium severity. CVSS v3 base score is 5.9 out of 10.