CVE-2020-9054 CISA KEV · Actively exploited
ZyXEL NAS products running firmware version 5.21 and earlier are vulnerable to pre-authentication command injection in weblogin.cgi
CVSS score
9.8
EPSS probability
%100.0
Risk score
19.6
Published
6 y ago
Related Security News
Articles and analysis bulletins in which the press and security publications have covered this vulnerability:
No verified news item has been matched to this CVE yet.
Similar Vulnerabilities
8.8
CVE-2017-6884 Actively exploitedOS command injection in N/a
Workaround Public Exploits:1EPSS %33
8.1
CVE-2025-9133Missing authorization in Zyxel Usg Flex 50
Patch status unknownEPSS %5
8.8
CVE-2026-7273 Actively exploitedVulnerability in Zyxel GS1900 48HPv2 Firmware
Workaround Public Exploits:1EPSS %3
7.5
7.2
CVE-2026-6837OS command injection in Zyxel WAX650S Firmware
Patch status unknown Public Exploits:2EPSS %2
7.2
CVE-2025-8078OS command injection in Zyxel Usg Flex 50
Patch status unknownEPSS %1
Get this vulnerability through the API
Affected products, version ranges, exploitation status and patch information in a single request, with a free key.
curl -H "x-api-key: $DAYBREACH_API_KEY" \ "https://api.daybreach.dev/api/v1/intel/cves/CVE-2020-9054"