Zyxel: Security Vulnerabilities
Zyxel VMG5313-B30B router on firmware 5.13(ABCJ.6)b3_1127, and possibly older versions of firmware are affected by shell injection.
CVSS Score
8.8
EPSS Score
0.008
Published
2020-08-31
A 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, V5.20(ABAG.1)C0, and V5.21(ABAG.3)C0; NSA325 v2_V4.81(AALS.0)C0 and V4.81(AAAJ.1)C0; NSA310 4.22(AFK.0)C0 and 4.22(AFK.1)C0; NAS326 V5.21(AAZF.8)C0, V5.11(AAZF.4)C0, V5.11(AAZF.2)C0, and V5.11(AAZF.3)C0; NSA310S V4.75(AALH.2)C0; NSA320S V4.75(AANV.2)C0 and V4.75(AANV.1)C0; NSA221 V4.41(AFM.1)C0; and NAS540 V5.21(AATB.5)C0 and V5.21(AATB.3)C0.
CVSS Score
6.5
EPSS Score
0.002
Published
2020-08-06
Certain 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 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, V5.20(ABAG.1)C0, and V5.21(ABAG.3)C0; NSA325 v2_V4.81(AALS.0)C0 and V4.81(AAAJ.1)C0; NSA310 4.22(AFK.0)C0 and 4.22(AFK.1)C0; NAS326 V5.21(AAZF.8)C0, V5.11(AAZF.4)C0, V5.11(AAZF.2)C0, and V5.11(AAZF.3)C0; NSA310S V4.75(AALH.2)C0; NSA320S V4.75(AANV.2)C0 and V4.75(AANV.1)C0; NSA221 V4.41(AFM.1)C0; and NAS540 V5.21(AATB.5)C0 and V5.21(AATB.3)C0.
CVSS Score
8.4
EPSS Score
0.001
Published
2020-08-06
Zyxel CloudCNM SecuManager 3.1.0 and 3.1.1 has a hardcoded DSA SSH key for the root account within the /opt/axess chroot directory tree.
CVSS Score
5.9
EPSS Score
0.003
Published
2020-06-29
Zyxel CloudCNM SecuManager 3.1.0 and 3.1.1 has a hardcoded ECDSA SSH key for the root account within the /opt/axess chroot directory tree.
CVSS Score
5.9
EPSS Score
0.003
Published
2020-06-29
Zyxel CloudCNM SecuManager 3.1.0 and 3.1.1 has a hardcoded RSA SSH key for the root account within the /opt/axess chroot directory tree.
CVSS Score
5.9
EPSS Score
0.003
Published
2020-06-29
Zyxel CloudCNM SecuManager 3.1.0 and 3.1.1 has a hardcoded DSA SSH key for the root account within the /opt/mysql chroot directory tree.
CVSS Score
5.9
EPSS Score
0.003
Published
2020-06-29
Zyxel CloudCNM SecuManager 3.1.0 and 3.1.1 has a hardcoded RSA SSH key for the root account within the /opt/mysql chroot directory tree.
CVSS Score
5.9
EPSS Score
0.003
Published
2020-06-29
Zyxel CloudCNM SecuManager 3.1.0 and 3.1.1 has the axiros password for the root account.
CVSS Score
9.8
EPSS Score
0.005
Published
2020-06-29
Zyxel CloudCNM SecuManager 3.1.0 and 3.1.1 has the axzyxel password for the livedbuser account.
CVSS Score
9.8
EPSS Score
0.005
Published
2020-06-29