{"id":"CVE-2018-25426","title":"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","summary":"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 fi…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-120"],"vendor":"winmtr","product":"winmtr","affected":["winmtr = 0.91"],"published":"2026-05-30","updated":"2026-07-22","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2018-25426","references":[{"url":"http://winmtr.net","label":"disclosure@vulncheck.com"},{"url":"http://winmtr.net/winmtr_download/","label":"disclosure@vulncheck.com"},{"url":"https://www.exploit-db.com/exploits/45769","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/winmtr-denial-of-service-via-buffer-overflow","label":"disclosure@vulncheck.com"}],"tags":["nvd"],"epss":0.00514,"epssPercentile":0.42614,"ingestedAt":"2026-07-23T06:14:18.149Z","slug":"CVE-2018-25426","body":"## Overview\n\nWinMTR 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.\n\n## Affected\n\n- `winmtr = 0.91`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}