How to fix CVE-2025-27935?

Within 24 hours: Identify all systems running PingFederate OTP Integration Kit and assess exposure; enable detailed authentication logging to detect exploitation attempts. Within 7 days: Implement WAF rules to enforce HTTP method validation on OTP endpoints and add state token validation checks; consider isolating PingFederate from untrusted networks if possible. Within 30 days: Monitor vendor communications closely for patch availability; prepare and test patch deployment; conduct forensic review of authentication logs for suspicious activity dating back 90 days.

CVE-2025-27935

EUVD-2025-201281 HIGH

2025-12-04 [email protected]

Authentication Bypass

8.6

CVSS 4.0

CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Lifecycle Timeline

EUVD ID Assigned

Mar 15, 2026 - 16:35 euvd

EUVD-2025-201281

Analysis Generated

Mar 15, 2026 - 16:35 vuln.today

CVE Published

Dec 04, 2025 - 21:16 nvd

HIGH 8.6

DescriptionNVD

The OTP Integration Kit for PingFederate fails to enforce HTTP method validation and state validation properly. The server advances the authentication state without verifying the OTP, thereby bypassing multi-factor authentication.

AnalysisAI

Technical ContextAI

An authentication bypass vulnerability allows attackers to circumvent login mechanisms and gain unauthorized access without valid credentials. This vulnerability is classified as Missing Authentication for Critical Function (CWE-306).

RemediationAI

Implement robust authentication mechanisms. Use multi-factor authentication. Review authentication logic for bypass conditions. Remove default credentials.

CVE-2025-27935 vulnerability details – vuln.today

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