HOMEVULNERABILITIESCVE-2025-3986
HIGH

CVE-2025-3986

CWE-400Published: April 27, 2025· Updated: Jun 17, 2026

7.5
CVSS v3.1

Official Description

A vulnerability was found in Apereo CAS 5.2.6. It has been declared as problematic. This vulnerability affects unknown code of the file cas-5.2.6\core\cas-server-core-configuration-metadata-repository\src\main\java\org\apereo\cas\metadata\rest\CasConfigurationMetadataServerController.java. The manipulation of the argument Name leads to inefficient regular expression complexity. The attack can be initiated 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.

NVD Source

Technical Analysis

CVE-2025-3986 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Vendors & Products

apereo1 product(s)
central authentication service
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://vuldb.com/?id.306322
ADVISORYhttps://vuldb.com/?submit.557473

All References (4)

→
https://vuldb.com/?ctiid.306322Permissions Required · VDB Entry
→
https://vuldb.com/?id.306322Third Party Advisory · VDB Entry
→
https://vuldb.com/?submit.557473Third Party Advisory · VDB Entry
→
https://wx.mail.qq.com/s?k=rk-m8GwRMVMcOjBY1aNot Applicable

Quick Facts

CVE IDCVE-2025-3986
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-400
CISA KEVNo
Affected1 vendor(s)
PublishedApr 27, 2025

Related CVEs (CWE-400)

CVE-2018-19282
9.8
CVE-2018-16489
9.8
CVE-2018-16491
9.8
CVE-2018-16492
9.8
CVE-2018-16486
9.8
CVE-2018-11936
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2025-3986 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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