Zscaler Critical Vulnerability - 20250806003¶
Overview¶
Zscaler, Inc. has released a security advisory addressing a critical vulnerability in their authentication service, where the improper verification of cryptographic signature in Zscaler's SAML authentication mechanism on the server-side allowed an authentication abuse.
What is vulnerable?¶
| Product Affected | Versions | CVE | CVSS | Severity |
|---|---|---|---|---|
| Authentication Server | All versions prior to 6.2r | CVE-2025-54982 | 9.6 | Critical |
What has been observed?¶
The WA SOC has not received any reports of exploitation of this vulnerability on Western Australian Government networks at the time of writing.
Recommendation¶
The WA SOC recommends administrators apply the solutions as per vendor instructions to all affected devices within expected timeframes (refer Patch Management):