CVE-2025-46171

5.4 mediumEPSS 0.3%

Medium (5.4) in vbulletin vbulletin. EPSS 0.3% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

5.4 medium

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

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 23% of CVEs (scores of 2026-10-31)
CWE: CWE-400
Published: 2025-07-23
Modified: 2026-07-05
Record from: the NVD, synced 2026-10-19

Affected

vbulletin:vbulletin

References

https://github.com/oiyl/CVE-2025-46171

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