PingFederate PingID Radius PCV Authentication Bypass

published 2023-10-24 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-43628

cvss: 7.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.8%; EPSS 0.8% chance of exploitation in 30 days, percentile 58%
public exploits: 0; none known

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.

Patch / fix

fixed in 1

Ping Identity PingID Radius PCV 3.0.3

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 2 y ago (2024-09-11)

Exploit prediction

0.84% chance of exploitation in the next 30 days, higher than 58% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.5	CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Ping Identity PingID Radius PCV

Classification

Weakness

CWE-288 Authentication Bypass Using an Alternate Path or Channel
CWE-306 Missing Authentication for Critical Functionality

References

pingidentity.com /en/resources/downloads/pingfederate.html
product
docs.pingidentity.com /r/en-us/pingid/pingid_integration_kit_2_26_rn
release-notes

Sources

CVE List CVE-2023-39930
NVD CVE-2023-39930

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary