CVE-2025-46171

MEDIUM

Vbulletin - Denial of Service

Title source: rule

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.

Exploits (1)

nomisec WRITEUP 4 stars
by oiyl · poc
https://github.com/oiyl/CVE-2025-46171

References (2)

Scores

CVSS v3 5.4
EPSS 0.0017
EPSS Percentile 37.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-400
Status published
Products (1)
vbulletin/vbulletin 3.8.7
Published Jul 23, 2025
Tracked Since Feb 18, 2026