CVE-2021-20123

Known Exploited Vulnerability Entry External Catalog

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Entry Details

CVE-2021-20123

Confirmed

Yes

2024-09-03 00:00 UTC

Timestamps

2024-09-03

2024-09-03

Scope

KEV entry: Draytek VigorConnect Path Traversal Vulnerability | Affected: DrayTek / VigorConnect | Description: Draytek VigorConnect contains a path traversal vulnerability in the DownloadFileServlet endpoint. An unauthenticated attacker could leverage this vulnerability to download arbitrary files from the underlying operating system with root privileges. | Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. | Due date: 2024-09-24 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://www.draytek.com/about/security-advisory/vigorconnect-software-security-vulnerability-(cve-2021-20123-cve-2021-20129); https://nvd.nist.gov/vuln/detail/CVE-2021-20123

References
  • {'id': 'CVE-2021-20123', 'url': 'https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2021-20123'}

6bc9b977-1660-4ebc-bca0-21109e90a24f

405284c2-e461-4670-8979-7fd2c9755a60

2026-02-02 13:24 UTC

2026-02-06 07:53 UTC

Evidence (1)
Type Source Signal Confidence Details GCVE Metadata
vendor_report cisa-kev successful_exploitation 0.80
View details 
{
  "cwes": [
    "CWE-22"
  ],
  "date_added": "2024-09-03",
  "due_date": "2024-09-24",
  "feed": "CISA Known Exploited Vulnerabilities Catalog",
  "knownRansomwareCampaignUse": "Unknown",
  "product": "VigorConnect",
  "vendorProject": "DrayTek",
  "vulnerabilityName": "Draytek VigorConnect Path Traversal Vulnerability "
}
 -
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