Coverage › CVE-2021-20124
CVE-2021-20124 Unmapped
Draytek VigorConnect Path Traversal Vulnerability
- Vendor / product
- DrayTek — VigorConnect
- Description (CISA)
- Draytek VigorConnect contains a path traversal vulnerability in the file download functionality of the WebServlet endpoint. An unauthenticated attacker could leverage this vulnerability to download arbitrary files from the underlying operating system with root privileges.
- Added to KEV
- 2024-09-03
- Due date
- 2024-09-24
- Required action
- Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
- Known ransomware use
- Unknown
- CWE
- CWE-22
- CISA notes
- https://www.draytek.com/about/security-advisory/vigorconnect-software-security-vulnerability-(cve-2021-20123-cve-2021-20129)
https://nvd.nist.gov/vuln/detail/CVE-2021-20124 - Elsewhere
- cve.org · NVD · CISA KEV · JSON
ATT&CK techniques
No public source states how this vulnerability is exploited in ATT&CK terms.
The only authoritative CVE → ATT&CK mapping in the open — CTID's Mappings Explorer, pinned to a KEV snapshot of 2025-07-28 and ATT&CK 16.1 — does not include CVE-2021-20124. CISA's catalogue carries no technique field. kevmap does not infer techniques from the CWE (CWE-22) — here is why — and does not guess.
This page will change state automatically if a mapping is published. What is shown above is everything CISA publishes about the entry.