vBulletin 3.8.7 is vulnerable to a denial-of-service condition via the misc.php?do=buddylist endpoint. If an authenticated user has a sufficiently large buddy list, processing the list can consume excessive memory, exhausting system resources and crashing the forum.
Advisories
Source ID Title
EUVD EUVD EUVD-2025-22462 vBulletin 3.8.7 is vulnerable to a denial-of-service condition via the misc.php?do=buddylist endpoint. If an authenticated user has a sufficiently large buddy list, processing the list can consume excessive memory, exhausting system resources and crashing the forum.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Mon, 28 Jul 2025 14:30:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:vbulletin:vbulletin:3.8.7:*:*:*:*:*:*:*

Mon, 28 Jul 2025 13:00:00 +0000

Type Values Removed Values Added
First Time appeared Vbulletin
Vbulletin vbulletin
Vendors & Products Vbulletin
Vbulletin vbulletin

Wed, 23 Jul 2025 16:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-400
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 23 Jul 2025 15:45:00 +0000

Type Values Removed Values Added
Description vBulletin 3.8.7 is vulnerable to a denial-of-service condition via the misc.php?do=buddylist endpoint. If an authenticated user has a sufficiently large buddy list, processing the list can consume excessive memory, exhausting system resources and crashing the forum.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2025-07-23T15:46:25.545Z

Reserved: 2025-04-22T00:00:00.000Z

Link: CVE-2025-46171

cve-icon Vulnrichment

Updated: 2025-07-23T15:45:06.219Z

cve-icon NVD

Status : Analyzed

Published: 2025-07-23T16:15:26.423

Modified: 2025-07-28T14:29:55.377

Link: CVE-2025-46171

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-07-28T12:45:53Z