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CVE-2020-15415

DrayTek — DrayTek Multiple Vigor Routers OS Command Injection Vulnerability

DrayTek · CWE-78 — Operating system command injection · in CISA KEV since 2024-09-30

KEV since 2024 · listed over a yearCISA KEVActively Exploited
83

EVRS 83 of 100 Urgent

Patch This Cycle

Rank 519 of 2,962 tracked

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Why it scores 83

Evidence available: 6 of 7 signals

Listed in the CISA KEV catalog, and an EPSS probability of 0.845.

  • CISA KEVApplied
  • RansomwareDid not apply
  • Vendor exploitationDid not apply
  • EPSSApplied
  • Microsoft Exploitability IndexNot applicable
  • Pre-patch disclosureNo data
  • KEV recencyDid not apply
  • CVSSApplied

The band answers “how soon”, not “how bad”. No data for: Pre-patch disclosure. Why some signals show no data

Fix

Patch or fixed version identified

CISA required action

Fixed in

vigor3900 firmware: update to 1.5.1 or later | vigor2960 firmware: update to 1.5.1 or later | vigor300b firmware: update to 1.5.1 or later

Affected versions

  • vigor3900 firmware< 1.5.1
  • vigor2960 firmware< 1.5.1
  • vigor300b firmware< 1.5.1
  • vigor3900
  • vigor2960
  • vigor300b

Remediation

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Fixed versions from NVD.

Evidence

Each value with its source
MeasureValueSource
CVSS base scoreHow severe the flaw is in itself. It does not say how likely an attack is. 9.8 NVD
FIRST EPSSFIRST's estimate of the chance this is exploited in the next 30 days, and how that ranks against all CVEs. 0.845 (99.7th pctl) FIRST EPSS
Actively exploitedWhether a source of record has confirmed attacks using it in the wild. Confirmed CISA KEV
Ransomware campaign useWhether CISA has seen ransomware operators use it. Unknown or none CISA KEV
CISA remediation deadlineThe date US federal agencies must have fixed or mitigated it. 2024-10-21 · KEV since 2024 · listed over a year CISA KEV
Public exploit moduleA module existing is not the same as active exploitation. None known Metasploit
EUVD cross-referenceENISA's record: CVSS 9.8 (v3.1), assigned by mitre. Listed ENISA EUVD

Description

NVD

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.

What CISA says to do