CVE-2025-46171

MEDIUM

CVSS v3.1: 5.4 · EPSS: 0.0025 (16.4 percentile)

NetworkNo privilegesResource Exhaustion (DoS)

Source data as of:

At a glance

Severity
MEDIUM
CVSS
5.4 v3.1 · NVD
EPSS
0.0025 (16.4 percentile) · FIRST.org
CISA KEV
No
Type
Resource Exhaustion (DoS) · NVD CWE
Attack conditions (CVSS vector)
NetworkNo privileges · Source: NVD Vector
Affected vendors
vbulletin
Published
2025-07-23 · Modified: 2026-07-05
References
Jump to references (1)

CVSS / EPSS / KEV

CVSS v3.1 5.4 / 10 MEDIUM Source: NVD
EPSS 0.0025 16.4 percentile Source: FIRST.org
CISA KEV No Source: CISA

Source — CVSS: NVD · EPSS: FIRST.org · KEV: CISA. Data & Sources

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.

Record details

CVE ID
CVE-2025-46171
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
Exploitability subscore
2.8
Impact subscore
2.5
EPSS
0.0025 (16.4 percentile) — 2026-07-05
CISA KEV
No
Weakness (CWE)
CWE-400
Affected vendors
vbulletin
Affected configurations (CPE)
1
Published
2025-07-23
Modified
2026-07-05
Status
Modified

References

Reference URLs as listed by NVD, grouped by a mechanical match on the link's host/pattern. Labels describe the link type only.

Related records

Other records sharing a factual facet, for cross-reference. A descriptive neighbourhood — ordering does not imply priority and is not a recommendation.

Same weakness type (CWE)

CVE-2024-36543 CRITICAL CVSS 9.8 CVE-2020-20021 HIGH CVSS 7.5 CVE-2022-23328 HIGH CVSS 7.5 CVE-2025-44528 HIGH CVSS 7.5

Published the same year

CVE-2025-50567 CRITICAL CVSS 10.0 CVE-2025-63314 CRITICAL CVSS 10.0 CVE-2025-67108 CRITICAL CVSS 10.0 CVE-2025-67109 CRITICAL CVSS 10.0
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