CVE-2026-37637

CRITICALPre-NVD 9.19.1—
EchelonGraph scoreMEDIUM confidence

Score 9.1 from GitHub Security Advisory (severity: CRITICAL) published 2026-06-29. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 9.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this weekElevated
9.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.1Exploit: Elevated riskExposed: 0

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

An issue in Alexantr filemanager v.1.0 allows a remote attacker to execute arbitrary code via the filemanager.php component

CVSS v3
9.1
EG Score
9.1(medium)
EG Risk
72(Attend)
EG Risk 72/100SSVC: 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
Severity91% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
1%
EPSS %ILE
49%
KEV
Not listed

Published

June 29, 2026

Last Modified

June 30, 2026

Advisory Details (1)

Auto-updated Aug 30, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

GitHub - SLO-CYBER-SEC/CVE-2026-37637: Remote Code Execution in Alexantr filemanager v1.0 via unrestricted file upload · GitHub

https://github.com/SLO-CYBER-SEC/CVE-2026-37637

Vendor Advisories for CVE-2026-37637(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 14× in last 7d / 175× 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 353 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-37637?
CVE-2026-37637 is a critical vulnerability published on June 29, 2026. An issue in Alexantr filemanager v.1.0 allows a remote attacker to execute arbitrary code via the filemanager.php component
When was CVE-2026-37637 disclosed?
CVE-2026-37637 was first published in the National Vulnerability Database on June 29, 2026, with the most recent update on June 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-37637 actively exploited?
CVE-2026-37637 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 50.7% of all scored CVEs.
What is the CVSS score of CVE-2026-37637?
CVE-2026-37637 has a CVSS v3.1 base score of 9.1 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-37637?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-37637, 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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