Nas520 firmware
This hub aggregates every CVE we track for Nas520 firmware, a product in the networking infrastructure space. Use it to gauge the current risk picture and drill into individual advisories.
3
CVEs tracked
1
Critical
2
High
1
In CISA KEV
Severity distribution
HIGH2CRITICAL1
Monthly trend
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2024-072026-06
Latest CVEs
The 3 most recently published vulnerabilities affecting Nas520 firmware.
- CVE-2020-13365Certain Zyxel products have a locally accessible binary that allows a non-root user to generate a password for an undocumented user account that can be used for a TELNET session as root. This affec...8.8
- CVE-2020-13364A backdoor in certain Zyxel products allows remote TELNET access via a CGI script. This affects NAS520 V5.21(AASZ.4)C0, V5.21(AASZ.0)C0, V5.11(AASZ.3)C0, and V5.11(AASZ.0)C0; NAS542 V5.11(ABAG.0)C0...8.8
- CVE-2020-9054ZyXEL NAS products running firmware version 5.21 and earlier are vulnerable to pre-authentication command injection in weblogin.cgiKEV9.8
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