What’s Vulnerable › Vulnerabilities

CVE-2023-39930: PingFederate PingID Radius PCV Authentication Bypass

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-10-25 · updated 2026-06-17
• Weakness: CWE-288

Description

A first-factor authentication bypass vulnerability exists in the PingFederate with PingID Radius PCV when a MSCHAP authentication request is sent via a maliciously crafted RADIUS client request.

Affected products

• Ping Identity PingID Radius PCV: from 3.0.0 before 3.0.3 — fixed in 3.0.3

How to fix

Upgrade to a fixed version: Ping Identity PingID Radius PCV 3.0.3. Check the vendor advisory for mitigations.

References

• https://docs.pingidentity.com/r/en-us/pingid/pingid_integration_kit_2_26_rn
• https://www.pingidentity.com/en/resources/downloads/pingfederate.html
• https://docs.pingidentity.com/r/en-us/pingid/pingid_integration_kit_2_26_rn
• https://www.pingidentity.com/en/resources/downloads/pingfederate.html

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