CVE-2026-37637

CRITICALPre-NVD 9.19.1—
EchelonGraph scoreHIGH 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
9.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 9.1Exploit: NoneExposed: 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(high)
EPSS
37.4%
KEV
Not listed

Published

June 29, 2026

Last Modified

June 30, 2026

Advisory Details (1)

Auto-updated Jun 29, 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 58× in last 7d / 61× 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.

  1. 2026-07-07 01:23 UTCEG score recompute
  2. 2026-07-07 01:23 UTCGHSA enrichment
  3. 2026-07-06 21:22 UTCEG score recompute
  4. 2026-07-06 21:21 UTCGHSA enrichment
  5. 2026-07-06 17:19 UTCEG score recompute
  6. 2026-07-06 17:19 UTCGHSA enrichment
  7. 2026-07-06 16:27 UTCEPSS rescore
  8. 2026-07-06 16:27 UTCEPSS rescore
  9. 2026-07-06 13:11 UTCEG score recompute
  10. 2026-07-06 13:11 UTCGHSA enrichment
  11. 2026-07-06 09:08 UTCEG score recompute
  12. 2026-07-06 09:08 UTCGHSA enrichment
  13. 2026-07-06 05:07 UTCEG score recompute
  14. 2026-07-06 05:06 UTCGHSA enrichment
  15. 2026-07-06 02:23 UTCEPSS rescore
  16. 2026-07-06 02:23 UTCEPSS rescore
  17. 2026-07-06 01:05 UTCEG score recompute
  18. 2026-07-06 01:05 UTCGHSA enrichment
  19. 2026-07-05 21:02 UTCEG score recompute
  20. 2026-07-05 21:02 UTCGHSA enrichment
  21. 2026-07-05 17:01 UTCEG score recompute
  22. 2026-07-05 17:01 UTCGHSA enrichment
  23. 2026-07-05 13:00 UTCEG score recompute
  24. 2026-07-05 13:00 UTCGHSA enrichment
  25. 2026-07-05 08:59 UTCEG score recompute
Show 36 more
  1. 2026-07-05 08:59 UTCGHSA enrichment
  2. 2026-07-05 04:56 UTCEG score recompute
  3. 2026-07-05 04:55 UTCGHSA enrichment
  4. 2026-07-05 02:30 UTCEPSS rescore
  5. 2026-07-05 00:52 UTCEG score recompute
  6. 2026-07-05 00:52 UTCGHSA enrichment
  7. 2026-07-04 20:51 UTCEG score recompute
  8. 2026-07-04 20:51 UTCGHSA enrichment
  9. 2026-07-04 16:50 UTCEG score recompute
  10. 2026-07-04 16:50 UTCGHSA enrichment
  11. 2026-07-04 12:49 UTCEG score recompute
  12. 2026-07-04 12:49 UTCGHSA enrichment
  13. 2026-07-04 08:48 UTCEG score recompute
  14. 2026-07-04 08:48 UTCGHSA enrichment
  15. 2026-07-04 06:31 UTCEPSS rescore
  16. 2026-07-04 04:47 UTCEG score recompute
  17. 2026-07-04 04:47 UTCGHSA enrichment
  18. 2026-07-04 00:44 UTCEG score recompute
  19. 2026-07-04 00:44 UTCGHSA enrichment
  20. 2026-07-03 20:42 UTCEG score recompute
  21. 2026-07-03 20:42 UTCGHSA enrichment
  22. 2026-07-03 16:41 UTCEG score recompute
  23. 2026-07-03 16:41 UTCGHSA enrichment
  24. 2026-07-03 12:39 UTCEG score recompute
  25. 2026-07-03 12:39 UTCGHSA enrichment
  26. 2026-07-03 08:35 UTCEG score recompute
  27. 2026-07-03 08:35 UTCGHSA enrichment
  28. 2026-07-03 04:33 UTCEG score recompute
  29. 2026-07-03 04:32 UTCGHSA enrichment
  30. 2026-07-03 00:30 UTCEG score recompute▲ 9.10
  31. 2026-07-03 00:30 UTCGHSA enrichment
  32. 2026-07-01 15:06 UTCEPSS rescore
  33. 2026-06-30 23:22 UTCEPSS rescore
  34. 2026-06-29 20:57 UTCMITRE cvelistV5CVSS v3 → 9.1 · severity → CRITICAL
  35. 2026-06-29 20:18 UTCEG score recompute
  36. 2026-06-29 20:17 UTCMITRE cvelistV5first tracked

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 37.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
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.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-37637

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