CVE-2025-42602
Published: 23 April 2025
Summary
CVE-2025-42602 is a high-severity Session Fixation (CWE-384) vulnerability in Org (inferred from references). Its CVSS base score is 8.2 (High).
Operationally, ranked in the top 26.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
This vulnerability affects Meon KYC solutions and stems from improper handling of access and refresh tokens in specific API endpoints during the authentication process. The flaw is tracked under CWE-384 and CWE-613 and carries a CVSS 4.0 score of 8.2.
A remote attacker with no prior credentials can exploit the issue by intercepting and manipulating API request and response bodies, resulting in unauthorized access to other user accounts.
The Indian Computer Emergency Response Team (CERT-In) published advisory CIVN-2025-0082 on the issue.
EPSS for the CVE rose from a starting value of 0.0076 to a peak of 0.0147, indicating that exploitation interest emerged after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-12237
Vulnerability details
This vulnerability exists in Meon KYC solutions due to improper handling of access and refresh tokens in certain API endpoints of authentication process. A remote attacker could exploit this vulnerability by intercepting and manipulating the responses through API request body…
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leading to unauthorized access of other user accounts.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Automatically terminating sessions after a defined period directly enforces session expiration, preventing indefinite session lifetimes that attackers can exploit.
Re-authentication after inactivity or time-based triggers prevents indefinite use of potentially hijacked or stale sessions.
Locks the device (typically after inactivity) until re-authentication, addressing insufficient session expiration by preventing indefinite access.
Terminating sessions and network connections upon completion prevents insufficient session expiration.
Directly enforces termination of network sessions after inactivity or end-of-session, preventing indefinite session lifetime.
Enforces proper session ID generation and binding, preventing fixation of a known session token.
Consistent clocks across systems allow session expiration and timeout enforcement to function as intended in distributed environments.
When the non-persistent artifact is a session or connection, mandatory termination implements the missing expiration that CWE-613 describes.