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CVE-2023-39930

26
FAUCET Score

CVE-2023-39930 is a critical first-factor authentication bypass vulnerability affecting PingFederate with PingID Radius PCV, allowing unauthorized access via maliciously crafted RADIUS client requests using MSCHAP. With a CVSS score of 9.8, this network-exploitable flaw requires no user interaction and can lead to complete compromise of confidentiality, integrity, and availability. Despite its severity, there is currently no public exploit code (Metasploit, Nuclei, ExploitDB), no evidence of active exploitation, and minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 3.0.0, < 3.0.3CPE matchmatch criteria
cpe:2.3:a:pingidentity:pingid_radius_pcv:*:*:*:*:*:*:*:*
>= 3.0, < 3.0.3CPE match
cpe:2.3:a:pingidentity:pingid_radius_pcv:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.6
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.69%
Probability of exploitation in next 30 days
EPSS Percentile
49.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0069 is in the 31st percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

docs.pingidentity.com / r/en-us/pingid/pingid_integration_kit_2_26_rn
Release Notes
pingidentity.com / en/resources/downloads/pingfederate.html
Product