CVE-2025-46171

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.

CVSS v3.1

5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

EPSS

0.26% chance of exploitation in the next 30 days, 18th percentile

Published

2025-07-23

Updated

2026-07-05

Proof-of-concept exploits (1)

• oiyl/CVE-2025-461714★ · 2025-06-27

References

• CVE Record
• NVD entry

Related

• CVE-2025-46157
• CVE-2025-46173
• CVE-2025-4615
• CVE-2025-46178
• CVE-2025-4613
• CVE-2025-46179