CVE-2025-46171: n/a
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.
AI Analysis
Technical Summary
CVE-2025-46171 affects vBulletin 3.8.7, where the misc.php?do=buddylist endpoint does not properly handle large buddy lists for authenticated users. This leads to excessive memory consumption, resulting in a denial-of-service condition by exhausting system resources and causing the forum to crash. The vulnerability is categorized under CWE-400 (Uncontrolled Resource Consumption). No official patch or fix information is currently available.
Potential Impact
Successful exploitation allows an authenticated user to cause a denial-of-service by crashing the forum through resource exhaustion. Confidentiality, integrity, and availability impacts are limited to low confidentiality and integrity impact, with no direct impact on availability beyond the denial-of-service condition.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, consider limiting the size of buddy lists or restricting access to the affected endpoint to trusted users only. Monitor system resource usage to detect potential exploitation attempts.
CVE-2025-46171: n/a
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.
CVSS v3.1
Score 5.4medium
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2025-46171 affects vBulletin 3.8.7, where the misc.php?do=buddylist endpoint does not properly handle large buddy lists for authenticated users. This leads to excessive memory consumption, resulting in a denial-of-service condition by exhausting system resources and causing the forum to crash. The vulnerability is categorized under CWE-400 (Uncontrolled Resource Consumption). No official patch or fix information is currently available.
Potential Impact
Successful exploitation allows an authenticated user to cause a denial-of-service by crashing the forum through resource exhaustion. Confidentiality, integrity, and availability impacts are limited to low confidentiality and integrity impact, with no direct impact on availability beyond the denial-of-service condition.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, consider limiting the size of buddy lists or restricting access to the affected endpoint to trusted users only. Monitor system resource usage to detect potential exploitation attempts.
Technical Details
- Data Version
- 5.1
- Assigner Short Name
- mitre
- Date Reserved
- 2025-04-22T00:00:00.000Z
- State
- PUBLISHED
Threat ID: 68810421ad5a09ad0026a6df
Added to database: 07/23/2025, 15:47:45 UTC
Last enriched: 07/05/2026, 22:06:32 UTC
Last updated: 09/10/2026, 19:36:50 UTC
Views: 154
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