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
Trending — 3 sources updated this weekElevated
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 7.5Exploit: NoneExposed: 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)
EPSS
40.3%
KEV
Not listed

Published

May 30, 2026

Last Modified

June 3, 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 16× in last 7d / 102× 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 192 total refreshes for this CVE.

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

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 June 3, 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 40.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
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.

Dependency Blast Radius

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