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.
History

Wed, 03 Jun 2026 19:45:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:winmtr:winmtr:0.91:*:*:*:*:*:*:*

Mon, 01 Jun 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Sat, 30 May 2026 23:00:00 +0000

Type Values Removed Values Added
First Time appeared Winmtr
Winmtr winmtr
Vendors & Products Winmtr
Winmtr winmtr

Sat, 30 May 2026 15:30:00 +0000

Type Values Removed Values Added
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.
Title WinMTR 0.91 Denial of Service via Buffer Overflow
Weaknesses CWE-120
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 8.7, '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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-06-01T14:41:41.611Z

Reserved: 2026-05-30T14:44:38.854Z

Link: CVE-2018-25426

cve-icon Vulnrichment

Updated: 2026-06-01T14:41:31.712Z

cve-icon NVD

Status : Analyzed

Published: 2026-05-30T16:17:03.993

Modified: 2026-06-03T19:31:22.017

Link: CVE-2018-25426

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-30T21:17:26Z