CVE-2019-25466

HIGHPre-NVD 8.48.4—
EchelonGraph scoreMEDIUM confidence

Score 8.4 from GitHub Security Advisory (severity: HIGH) published 2026-03-11. the CNA's CVSS baseline 8.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:vulncheck, epss, ghsa
Elevated
8.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.4Exploit: Elevated riskExposed: 0

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

Easy File Sharing Web Server 7.2 contains a local structured exception handling buffer overflow vulnerability that allows local attackers to execute arbitrary code by creating a malicious username. Attackers can craft a username with a payload containing 4059 bytes of padding followed by a nseh value and seh pointer to trigger the overflow when adding a new user account.

CVSS v3
8.4
EG Score
8.4(medium)
EG Risk
54(Track*)
EG Risk 54/100SSVC: Track*

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
Severity84% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
0%
EPSS %ILE
5%
KEV
Not listed

Published

March 11, 2026

Last Modified

July 15, 2026

Advisory Details (2)

Auto-updated Jun 9, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic

Easy File Sharing Web Server 7.2 Local SEH Overflow | Advisories | VulnCheck

https://www.vulncheck.com/advisories/easy-file-sharing-web-server-local-seh-overflow
generic🟡 PoC Available

Easy File Sharing Web Server 7.2 - 'New User' Local Overflow (SEH) - Windows local Exploit

https://www.exploit-db.com/exploits/47411

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 5× in last 7d / 21× 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 207 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2019-25466?
CVE-2019-25466 is a high vulnerability published on March 11, 2026. Easy File Sharing Web Server 7.2 contains a local structured exception handling buffer overflow vulnerability that allows local attackers to execute arbitrary code by creating a malicious username. Attackers can craft a username with a payload containing 4059 bytes of padding followed by a nseh…
When was CVE-2019-25466 disclosed?
CVE-2019-25466 was first published in the National Vulnerability Database on March 11, 2026, with the most recent update on July 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2019-25466 actively exploited?
CVE-2019-25466 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 95.4% of all scored CVEs.
What is the CVSS score of CVE-2019-25466?
CVE-2019-25466 has a CVSS v4.0 base score of 8.4 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2019-25466?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-25466, 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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