CVE-2025-54982
CRITICALCVSS 9.6/10EPSS 0.37%
Last modified
CVE-2025-54982 is a critical-severity vulnerability rated 9.6/10 on the CVSS scale. An improper verification of cryptographic signature in Zscaler's SAML authentication mechanism on the server-side allowed an authentication abuse.. EPSS estimates a 0.37% chance of exploitation in the next 30 days.
Description
An improper verification of cryptographic signature in Zscaler's SAML authentication mechanism on the server-side allowed an authentication abuse.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
Weakness Enumeration
References
Timeline
- Published
- Last Modified
- Status
- Deferred
Frequently Asked Questions
What is CVE-2025-54982?
An improper verification of cryptographic signature in Zscaler's SAML authentication mechanism on the server-side allowed an authentication abuse.
How severe is CVE-2025-54982?
CVE-2025-54982 has a CVSS score of 9.6/10 (CRITICAL severity). The EPSS model estimates a 0.37% probability of exploitation in the next 30 days.
How do I fix CVE-2025-54982?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2025-54982?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST