CVE-2018-25426

WinMTR 0.91 Denial of Service via Buffer Overflow

HIGH
7.5
CVSS Score
Published: May 30, 2026 at 02:55 PM UTC
Updated: October 6, 2026 at 10:10 PM UTC
1 product affected across 1 vendorWinmtr

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Severity
HIGH7.5
Exploit prediction
EPSS 0.5%
SSVC
PoC

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (4)

ExploitThird Party AdvisoryVDB Entry
Source: cverecord
https://www.exploit-db.com/exploits/45769
Product
Source: cverecord
http://winmtr.net
ProductExploit
Source: cverecord
http://winmtr.net/winmtr_download/

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHVulnCheck
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-120

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