CVE-2018-25426

HIGH

WinMTR 0.91 Denial of Service via Buffer Overflow

Title source: cna
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2018-25426. PoCs published by Ihsan Sencan.

AI-analyzed exploit summary This PoC demonstrates a denial-of-service vulnerability in WinMTR 0.91 by creating a file with a 238-byte buffer overflow payload. The exploit is trivial and relies on a static buffer overflow to crash the application.

Description

WinMTR 0.91 contains a denial of service vulnerability that allows attackers to crash the application by sending a malformed payload file containing a large buffer of repeated characters. Attackers can create a specially crafted input file with 238 bytes of data to trigger a buffer overflow condition that causes the application to crash.

Exploits (1)

exploitdb WORKING POC
by Ihsan Sencan · pythondoswindows_x86-64
https://www.exploit-db.com/exploits/45769

This PoC demonstrates a denial-of-service vulnerability in WinMTR 0.91 by creating a file with a 238-byte buffer overflow payload. The exploit is trivial and relies on a static buffer overflow to crash the application.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: WinMTR 0.91
No auth needed
Prerequisites: WinMTR 0.91 installed on the target system
devstral-2 · analyzed May 30, 2026 Full analysis →

References (4)

Core 4
Core References
Exploit exploit
ExploitDB-45769
https://www.exploit-db.com/exploits/45769
Product product
Official Product Homepage
http://winmtr.net
Product product
Product Reference
http://winmtr.net/winmtr_download/
Third Party Advisory third-party-advisory
VulnCheck Advisory: WinMTR 0.91 Denial of Service via Buffer Overflow
https://www.vulncheck.com/advisories/winmtr-denial-of-service-via-buffer-overflow

Scores

CVSS v3 7.5
EPSS 0.0046
EPSS Percentile 36.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact partial

Details

CWE
CWE-120
Status published
Products (2)
winmtr/winmtr 0.91
Winmtr/WinMTR 0.91
Published May 30, 2026
Tracked Since May 30, 2026