CVE-2025-46171

Published Jul 23, 2025 CVSS 3.1 · 5.4 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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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.
References
History
Type Values Removed Values Added
CPEs cpe:2.3:a:vbulletin:vbulletin:3.8.7:*:*:*:*:*:*:*
Type Values Removed Values Added
First Time appeared Vbulletin
Vbulletin vbulletin
Vendors & Products Vbulletin
Vbulletin vbulletin
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'}

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
Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Jul 5, 2026, 1:04 AM
Reserved
Apr 22, 2025, 12:00 AM
Status
Modified
Published
Jul 23, 2025, 4:15 PM
Modified
Jul 5, 2026, 1:21 AM