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
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 9.8Exploit: NoneExposed: 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)
EPSS
46.5%
KEV
Not listed

Published

June 4, 2026

Last Modified

June 4, 2026

Advisory Details (2)

Auto-updated Jun 20, 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🟡 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 28× in last 7d / 215× 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 379 total refreshes for this CVE.

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

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. 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 46.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
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

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