CVE-2021-20123

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Summary

CVECVE-2021-20123
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-10-13 16:15:00 UTC
Updated2022-07-12 17:42:00 UTC
DescriptionA local file inclusion vulnerability exists in Draytek VigorConnect 1.6.0-B3 in the file download functionality of the DownloadFileServlet endpoint. An unauthenticated attacker could leverage this vulnerability to download arbitrary files from the underlying operating system with root privileges.

Risk And Classification

EPSS: 0.939890000 probability, percentile 0.998890000 (date 2026-04-02)

CISA KEV: Listed on 2024-09-03; due 2024-09-24; ransomware use Unknown

Problem Types: CWE-22

CISA Known Exploited Vulnerability

VendorDrayTek
ProductVigorConnect
NameDraytek VigorConnect Path Traversal Vulnerability
Required ActionApply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Noteshttps://www.draytek.com/about/security-advisory/vigorconnect-software-security-vulnerability-(cve-2021-20123-cve-2021-20129); https://nvd.nist.gov/vuln/detail/CVE-2021-20123

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Draytek Vigorconnect 1.6.0 beta3 All All

References

ReferenceSourceLinkTags
Multiple Vulnerabilities in Draytek VigorConnect 1.60.0-B3 - Research Advisory | Tenable® MISC www.tenable.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
CISA Known Exploited Vulnerabilities catalog CISA www.cisa.gov kev
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