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TI-2021-03426 Aliases CVE-2021-20126GHSA-jjgv-mwpx-j9j7

Cross-site request forgery in Draytek VigorConnect

Priority LOW 39CWE-352Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Tampering
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-352.

Summary

Draytek VigorConnect 1.6.0-B3 lacks cross-site request forgery protections and does not sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request.

Why it matters now

EPSS 0.00632 50th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
—Draytek VigorConnect1.6.0-B3—No fix listedCNA
  • Draytek VigorConnect Vendor— Affected 1.6.0-B3 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:draytek:vigorconnect:1.6.0:beta3:*:*:*:*:*:*1.6.0 beta3VulnerableDrayTek
  • cpe:2.3:a:draytek:vigorconnect:1.6.0:beta3:*:*:*:*:*:* Versions 1.6.0 beta3 Vulnerable ·DrayTek

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-20126
  2. 2026-10-03 Alias added: GHSA-jjgv-mwpx-j9j7
  3. 2026-10-25 EPSS moved to the 50th–90th percentile

References

Exploit 1

  • TI-2021-03424 Path traversal in Draytek VigorConnect KEVCVSS 3.1HIGH 7.5
  • TI-2021-03423 Path traversal in Draytek VigorConnect KEVCVSS 3.1HIGH 7.5
  • TI-2021-03425 Path traversal in Draytek VigorConnect CVSS 3.1CRITICAL 9.8
  • TI-2021-03427 An arbitrary file deletion vulnerability exists in the file delete functionality of the… CVSS 3.1HIGH 8.1
  • TI-2021-03429 Sensitive information in log files in Draytek VigorConnect CVSS 3.1HIGH 7.5
  • TI-2021-03428 Cross-site scripting in Draytek VigorConnect CVSS 3.1MEDIUM 5.4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences