CVE-2018-25426

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-05-30. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Elevated
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.5Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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
EG Score
7.5(medium)
EG Risk
65(Attend)
EG Risk 65/100SSVC: Attend

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity75% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
1%
EPSS %ILE
42%
KEV
Not listed

Published

May 30, 2026

Last Modified

July 22, 2026

Advisory Details (3)

Auto-updated May 30, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic

WinMTR 0.91 Denial of Service via Buffer Overflow | Advisories | VulnCheck

https://www.vulncheck.com/advisories/winmtr-denial-of-service-via-buffer-overflow
generic🟡 PoC Available

WinMTR 0.91 - Denial of Service (PoC) - Windows_x86-64 dos Exploit

https://www.exploit-db.com/exploits/45769
generic

WinMTR - Network Diagnostic Tool for Windows | Official Site

http://winmtr.net

Vendor Advisories for CVE-2018-25426(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 5× in last 7d / 65× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 245 total refreshes for this CVE.

  1. 2026-09-04 13:56 UTCEPSS rescore
  2. 2026-09-04 05:02 UTCEPSS rescore
  3. 2026-09-02 14:07 UTCEPSS rescore
  4. 2026-09-01 13:49 UTCEPSS rescore
  5. 2026-09-01 03:32 UTCEPSS rescore
  6. 2026-08-28 21:36 UTCEPSS rescore
  7. 2026-08-27 14:21 UTCEPSS rescore
  8. 2026-08-26 14:42 UTCEPSS rescore
  9. 2026-08-25 13:44 UTCEPSS rescore
  10. 2026-08-25 04:07 UTCEG score recompute
  11. 2026-08-25 04:07 UTCGHSA enrichment
  12. 2026-08-23 14:02 UTCEG score recompute
  13. 2026-08-23 14:02 UTCGHSA enrichment
  14. 2026-08-21 23:45 UTCEPSS rescore
  15. 2026-08-21 14:56 UTCEG score recompute
  16. 2026-08-21 14:56 UTCGHSA enrichment
  17. 2026-08-20 22:51 UTCEPSS rescore
  18. 2026-08-20 22:28 UTCGHSA enrichment
  19. 2026-08-20 10:23 UTCEG score recompute
  20. 2026-08-20 10:23 UTCGHSA enrichment
  21. 2026-08-19 17:00 UTCEPSS rescore
  22. 2026-08-18 13:44 UTCEPSS rescore
  23. 2026-08-17 13:43 UTCEPSS rescore
  24. 2026-08-17 06:49 UTCGHSA enrichment
  25. 2026-08-16 16:22 UTCEG score recompute
Show 75 more
  1. 2026-08-16 16:22 UTCGHSA enrichment
  2. 2026-08-16 14:51 UTCEPSS rescore
  3. 2026-08-16 04:25 UTCEG score recompute
  4. 2026-08-16 04:25 UTCGHSA enrichment
  5. 2026-08-16 02:10 UTCEPSS rescore
  6. 2026-08-15 16:41 UTCEG score recompute
  7. 2026-08-15 16:41 UTCGHSA enrichment
  8. 2026-08-15 01:26 UTCEPSS rescore
  9. 2026-08-14 23:55 UTCGHSA enrichment
  10. 2026-08-14 12:10 UTCGHSA enrichment
  11. 2026-08-14 00:26 UTCEG score recompute
  12. 2026-08-14 00:26 UTCGHSA enrichment
  13. 2026-08-13 21:56 UTCEPSS rescore
  14. 2026-08-13 10:46 UTCGHSA enrichment
  15. 2026-08-12 23:01 UTCEG score recompute
  16. 2026-08-12 23:01 UTCGHSA enrichment
  17. 2026-08-12 13:46 UTCEPSS rescore
  18. 2026-08-12 11:17 UTCGHSA enrichment
  19. 2026-08-11 23:06 UTCEG score recompute
  20. 2026-08-11 23:06 UTCGHSA enrichment
  21. 2026-08-11 11:21 UTCGHSA enrichment
  22. 2026-08-10 23:36 UTCEG score recompute
  23. 2026-08-10 23:36 UTCGHSA enrichment
  24. 2026-08-10 06:25 UTCGHSA enrichment
  25. 2026-08-09 18:40 UTCEG score recompute
  26. 2026-08-09 18:40 UTCGHSA enrichment
  27. 2026-08-09 13:43 UTCEPSS rescore
  28. 2026-08-09 06:56 UTCGHSA enrichment
  29. 2026-08-08 19:12 UTCEG score recompute
  30. 2026-08-08 19:12 UTCGHSA enrichment
  31. 2026-08-08 16:32 UTCEPSS rescore
  32. 2026-08-08 07:23 UTCGHSA enrichment
  33. 2026-08-07 19:39 UTCEG score recompute
  34. 2026-08-07 19:39 UTCGHSA enrichment
  35. 2026-08-07 16:23 UTCEPSS rescore
  36. 2026-08-07 07:54 UTCGHSA enrichment
  37. 2026-08-06 20:10 UTCEG score recompute
  38. 2026-08-06 20:10 UTCGHSA enrichment
  39. 2026-08-06 13:42 UTCEPSS rescore
  40. 2026-08-06 08:25 UTCGHSA enrichment
  41. 2026-08-05 20:41 UTCEG score recompute
  42. 2026-08-05 20:41 UTCGHSA enrichment
  43. 2026-08-05 19:13 UTCEPSS rescore
  44. 2026-08-04 22:55 UTCEG score recompute
  45. 2026-08-04 22:55 UTCGHSA enrichment
  46. 2026-08-04 15:05 UTCEPSS rescore
  47. 2026-08-04 03:38 UTCGHSA enrichment
  48. 2026-08-03 15:54 UTCEG score recompute
  49. 2026-08-03 15:54 UTCGHSA enrichment
  50. 2026-08-03 01:06 UTCGHSA enrichment
  51. 2026-08-02 13:21 UTCEG score recompute
  52. 2026-08-02 13:21 UTCGHSA enrichment
  53. 2026-08-02 02:23 UTCEPSS rescore
  54. 2026-08-02 01:36 UTCGHSA enrichment
  55. 2026-08-01 13:51 UTCEG score recompute
  56. 2026-08-01 13:51 UTCGHSA enrichment
  57. 2026-08-01 04:12 UTCEPSS rescore
  58. 2026-07-31 19:05 UTCGHSA enrichment
  59. 2026-07-31 05:50 UTCEG score recompute
  60. 2026-07-31 05:50 UTCGHSA enrichment
  61. 2026-07-30 16:24 UTCEPSS rescore
  62. 2026-07-30 01:27 UTCEPSS rescore
  63. 2026-07-29 11:27 UTCEG score recompute
  64. 2026-07-29 11:27 UTCGHSA enrichment
  65. 2026-07-28 15:32 UTCEPSS rescore
  66. 2026-07-28 03:59 UTCEG score recompute
  67. 2026-07-28 03:59 UTCGHSA enrichment
  68. 2026-07-27 02:57 UTCEG score recompute
  69. 2026-07-27 02:57 UTCGHSA enrichment
  70. 2026-07-26 14:51 UTCEPSS rescore
  71. 2026-07-26 14:51 UTCEPSS rescore
  72. 2026-07-25 14:14 UTCEPSS rescore
  73. 2026-07-24 14:14 UTCEPSS rescore
  74. 2026-07-24 14:14 UTCEPSS rescore
  75. 2026-07-23 14:15 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2018-25426?
CVE-2018-25426 is a high vulnerability published on May 30, 2026. 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…
When was CVE-2018-25426 disclosed?
CVE-2018-25426 was first published in the National Vulnerability Database on May 30, 2026, with the most recent update on July 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2018-25426 actively exploited?
CVE-2018-25426 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 58.2% of all scored CVEs.
What is the CVSS score of CVE-2018-25426?
CVE-2018-25426 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2018-25426?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-25426, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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