CVE-2025-3985 – Apereo CAS Remote Regular Expression Denial of Service (DoS)

The following table lists the changes that have been made to the
CVE-2025-3985 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • New CVE Received
    by [email protected]

    Apr. 27, 2025

    Action Type Old Value New Value
    Added Description A vulnerability was found in Apereo CAS 5.2.6. It has been classified as problematic. This affects the function ResponseEntity of the file cas-5.2.6webapp-mgmtcas-management-webapp-supportsrcmainjavaorgapereocasmgmtserviceswebManageRegisteredServicesMultiActionController.java. The manipulation of the argument Query leads to inefficient regular expression complexity. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
    Added CVSS V4.0 AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
    Added CVSS V3.1 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L
    Added CVSS V2 (AV:N/AC:L/Au:M/C:N/I:N/A:P)
    Added CWE CWE-400
    Added CWE CWE-1333
    Added Reference https://vuldb.com/?ctiid.306321
    Added Reference https://vuldb.com/?id.306321
    Added Reference https://vuldb.com/?submit.557110
    Added Reference https://wx.mail.qq.com/s?k=lzDuxVkSRXUZ0bwZEG
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