CVE-2018-25426

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
http://winmtr.net	Product
http://winmtr.net/winmtr_download/	Exploit
https://www.exploit-db.com/exploits/45769	Exploit Third Party Advisory VDB Entry
https://www.vulncheck.com/advisories/winmtr-denial-of-service-via-buffer-overflow	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:winmtr:winmtr:0.91:*:*:*:*:*:*:*

History

03 Jun 2026, 19:31

Type	Values Removed	Values Added
References	~~() http://winmtr.net -~~	() http://winmtr.net - Product
References	~~() http://winmtr.net/winmtr_download/ -~~	() http://winmtr.net/winmtr_download/ - Exploit
References	~~() https://www.exploit-db.com/exploits/45769 -~~	() https://www.exploit-db.com/exploits/45769 - Exploit, Third Party Advisory, VDB Entry
References	~~() https://www.vulncheck.com/advisories/winmtr-denial-of-service-via-buffer-overflow -~~	() https://www.vulncheck.com/advisories/winmtr-denial-of-service-via-buffer-overflow - Third Party Advisory
First Time		Winmtr winmtr Winmtr
CPE		cpe:2.3:a:winmtr:winmtr:0.91:::::::*

30 May 2026, 16:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-05-30 16:17

Updated : 2026-06-03 19:31

NVD link : CVE-2018-25426

Mitre link : CVE-2018-25426

CVE.ORG link : CVE-2018-25426

JSON object : View

Products Affected

winmtr

winmtr

CWE

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

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