CVE-2025-42615
In affected versions, vulnerability-lookup did not track or limit failed One-Time Password (OTP) attempts during Two-Factor Authentication (2FA) verification.
Overview
CVE-2025-42615 is a known-severity vulnerability. It was published on December 8, 2025.
Technical description
In affected versions, vulnerability-lookup did not track or limit failed
One-Time Password (OTP) attempts during Two-Factor Authentication (2FA)
verification. An attacker who already knew or guessed a valid username
and password could submit an arbitrary number of OTP codes without
causing the account to be locked or generating any specific alert for
administrators.
This lack of rate-limiting and lockout on OTP failures significantly
lowers the cost of online brute-force attacks against 2FA codes and
increases the risk of successful account takeover, especially if OTP
entropy is reduced (e.g. short numeric codes, user reuse, or predictable
tokens). Additionally, administrators had no direct visibility into
accounts experiencing repeated 2FA failures, making targeted attacks
harder to detect and investigate.
The patch introduces a persistent failed_otp_attempts counter on user
accounts, locks the user after 5 invalid OTP submissions, resets the
counter on successful ver
Remediation
Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
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Frequently asked questions
What is CVE-2025-42615?
CVE-2025-42615 is a known-severity vulnerability. It was published on December 8, 2025.
How severe is CVE-2025-42615?
CVSS score information is not yet available for this vulnerability. Check back as the CVE record is updated by NVD analysts.
How do I fix or remediate CVE-2025-42615?
Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2025-42615?
CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-42615 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.