CVE-2025-46171

vBulletin 3.8.7 is vulnerable to a denial-of-service condition via the misc.php?do=buddylist endpoint

Medium · published July 23, 2025

CVSS v3.1
5.4
EPSS
0%
Percentile
19.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.4 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00285 · 19.9th percentile
Published
2025-07-23T00:00Z
EPSS history
Timeline
  • 23 JUL 00:00Z
    vBulletin 3.8.7 is vulnerable to a denial-of-service condition via the misc.php?do=buddylist endpoint
    cvelistv5