CVE-2020-15415

CRITICALNVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score elevated to 9.8 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2024-09-30), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 9.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 4 sources updated this weekExploited in the wild
9.8EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 84%CVSS: 9.8Exploit: cisa kev · ssvc active · epss top5pct · epss high · public exploitExposed: 0

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

On DrayTek Vigor3900, Vigor2960, and Vigor300B devices before 1.5.1, cgi-bin/mainfunction.cgi/cvmcfgupload allows remote command execution via shell metacharacters in a filename when the text/x-python-script content type is used, a different issue than CVE-2020-14472.

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
99(Act)
EG Risk 99/100SSVC: Act

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%
Exploitation100% × 40%
Automatability100% × 15%
Action: Fix now — active exploitation, automatable, high impact.
EPSS PROB
84%
EPSS %ILE
100%
KEV
⚠ Exploited

Published

June 30, 2020

Last Modified

November 7, 2025

Advisory Details (3)

Auto-updated Sep 24, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: cisa.
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-15415
generic

Security Advisory | DrayTek

https://www.draytek.com/about/security-advisory
generic

GitHub - CLP-team/Vigor-Commond-Injection · GitHub

https://github.com/CLP-team/Vigor-Commond-Injection

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 58× in last 7d / 234× 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 876 total refreshes for this CVE.

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

Publicly available exploits

(1 reference)

Working exploit code is in the public domain. Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Nucleihttp/cves/2020/CVE-2020-15415.yaml
    First seen Jan 1, 2020

    DrayTek Vigor - Command Injection

    Open source ↗

Related CVEs(same CWE)

Frequently asked(6)

What is CVE-2020-15415?
CVE-2020-15415 is a critical vulnerability published on June 30, 2020. On DrayTek Vigor3900, Vigor2960, and Vigor300B devices before 1.5.1, cgi-bin/mainfunction.cgi/cvmcfgupload allows remote command execution via shell metacharacters in a filename when the text/x-python-script content type is used, a different issue than CVE-2020-14472.
When was CVE-2020-15415 disclosed?
CVE-2020-15415 was first published in the National Vulnerability Database on June 30, 2020, with the most recent update on November 7, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2020-15415 actively exploited?
Yes. CISA added CVE-2020-15415 to the Known Exploited Vulnerabilities catalog on September 30, 2024, affecting DrayTek Multiple Vigor Routers. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2020-15415?
CVE-2020-15415 has a CVSS v3 base score of 9.8 (NVD).
Which products are affected by CVE-2020-15415?
CVE-2020-15415 affects DrayTek Multiple Vigor Routers. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2020-15415?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-15415, 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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