CVE-2025-51495

HIGH EPSS 31.4%
Published Sep 29, 20259mo ago · Modified Jun 17, 20262w ago
7.5 CVSS 3.1
High
Find Similar
Published Sep 29, 2025 9mo ago
Last Modified Jun 17, 2026 2w ago

Description

An integer overflow vulnerability exists in the WebSocket component of Mongoose 7.5 thru 7.17. By sending a specially crafted WebSocket request, an attacker can cause the application to crash. If downstream vendors integrate this component improperly, the issue may lead to a buffer overflow.

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
31.4% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-190 Integer Overflow or Wraparound Numeric Error

Affected Products 1

VendorProductVersionRange
cesantamongoose*≥7.5  –  ≤7.17

References 3

  • github.com https://github.com/cainiao159357/CVE-2025-51495
    Exploit
  • github.com https://github.com/cesanta/mongoose
    Product
  • github.com https://github.com/cesanta/mongoose/pull/3131
    Issue TrackingPatch

Remediation

  • github.com https://github.com/cesanta/mongoose/pull/3131
    Issue TrackingPatch