Description
A post-authentication information exposure vulnerability in the CGI program of Zyxel ATP series firmware versions 4.32 through 5.35, USG FLEX series firmware versions 4.50 through 5.35, USG FLEX 50(W) firmware versions 4.16 through 5.35, USG20(W)-VPN firmware versions 4.16 through 5.35, VPN series firmware versions 4.30 through 5.35, NWA110AX firmware version 6.50(ABTG.2) and earlier versions, WAC500 firmware version 6.50(ABVS.0) and earlier versions, and WAX510D firmware version 6.50(ABTF.2) and earlier versions, which could allow a remote authenticated attacker to retrieve encrypted information of the administrator on an affected device.
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Affected products
- Zyxel / ATP series firmware4.32 through 5.35 – 4.32 through 5.35
- Zyxel / NWA110AX firmware<= 6.50(ABTG.2) – <= 6.50(ABTG.2)
- Zyxel / USG20(W)-VPN firmware4.16 through 5.35 – 4.16 through 5.35
- Zyxel / USG FLEX 50(W) firmware4.16 through 5.35 – 4.16 through 5.35
- Zyxel / USG FLEX series firmware4.50 through 5.35 – 4.50 through 5.35
- Zyxel / VPN series firmware4.30 through 5.35 – 4.30 through 5.35
- Zyxel / WAC500 firmware<= 6.50(ABVS.0) – <= 6.50(ABVS.0)
- Zyxel / WAX510D firmware<= 6.50(ABTF.2) – <= 6.50(ABTF.2)