CVE-2019-25741

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-06-04. the CNA's CVSS baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:vulncheck, epss, ghsa
Trending — 3 sources updated this weekElevated
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.8Exploit: Elevated riskExposed: 0

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

Mobatek MobaXterm 12.1 contains a structured exception handling (SEH) based buffer overflow vulnerability in the username field of session files that allows remote attackers to execute arbitrary code. Attackers can craft a malicious MobaXterm sessions file with overflow data that triggers the vulnerability when imported and executed, enabling reverse shell execution with user privileges.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
75(Attend)
EG Risk 75/100SSVC: 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
Severity98% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
1%
EPSS %ILE
49%
KEV
Not listed

Published

June 4, 2026

Last Modified

July 28, 2026

Advisory Details (3)

Auto-updated Sep 15, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic

Mobatek MobaXterm 12.1 Buffer Overflow via Sessions File | Advisories | VulnCheck

https://www.vulncheck.com/advisories/mobatek-mobaxterm-buffer-overflow-via-sessions-file
generic
https://download.mobatek.net/1112019010310554/MobaXterm_Portable_v11.1.zip
generic🟡 PoC Available

Mobatek MobaXterm 12.1 - Buffer Overflow (SEH) - Windows local Exploit

https://www.exploit-db.com/exploits/47429

Vendor Advisories for CVE-2019-25741(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 8× in last 7d / 47× 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 417 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2019-25741?
CVE-2019-25741 is a critical vulnerability published on June 4, 2026. Mobatek MobaXterm 12.1 contains a structured exception handling (SEH) based buffer overflow vulnerability in the username field of session files that allows remote attackers to execute arbitrary code. Attackers can craft a malicious MobaXterm sessions file with overflow data that triggers the…
When was CVE-2019-25741 disclosed?
CVE-2019-25741 was first published in the National Vulnerability Database on June 4, 2026, with the most recent update on July 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2019-25741 actively exploited?
CVE-2019-25741 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 51.3% of all scored CVEs.
What is the CVSS score of CVE-2019-25741?
CVE-2019-25741 has a CVSS v4.0 base score of 9.8 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2019-25741?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-25741, 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

Explore the affected products and dependency analysis for CVE-2019-25741

Explore →

Is Your Infrastructure Affected by CVE-2019-25741?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs