What’s Vulnerable › Vulnerabilities

CVE-2025-46171

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-07-23 · updated 2026-07-05
• Weakness: CWE-400

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.

Affected products

• vBulletin: 3.8.7

References

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

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