CVE-2018-25426

HIGH 7.5

WinMTR 0.91 Denial of Service via Buffer Overflow

CVSS Score

7.5

EPSS Score

0.0%

EPSS Percentile

13th

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.

CWE	CWE-120
Vendor	winmtr
Product	winmtr
Published	May 30, 2026
Last Updated	Jun 1, 2026

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CVSS v3 Breakdown

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

Affected Versions

Winmtr / WinMTR

0.91

References

NVD ↗ CVE.org ↗ EPSS Data ↗

exploit-db.com: https://www.exploit-db.com/exploits/45769 winmtr.net: http://winmtr.net winmtr.net: http://winmtr.net/winmtr_download/ vulncheck.com: https://www.vulncheck.com/advisories/winmtr-denial-of-service-via-buffer-overflow

Credits

Ihsan Sencan