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High · 7.5 CVE-2018-25426 EUVD-2018-21948GHSA-xxv6-9r94-cfxm

WinMTR 0.91 Denial of Service via Buffer Overflow

Published May 30, 2026 · Updated Oct 1, 2026 · Assigned by VulnCheck

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.

Affected products

VendorProductAffectedFixed
Winmtr WinMTR 0.91 —

References