CVE-2018-25426 HIGH

CVE-2018-25426: WinMTR 0.91 Denial of Service via Buffer Overflow

Vendor Winmtr
Product WinMTR
Weakness CWE-120
Published May 30, 2026
Last update June 1, 2026
View on NVD All CVEs

CVSS base score

8.7/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

May 30, 2026 CVE published
June 1, 2026 Record updated