Home/CVE/A post-authentication information exposure vulnerability in the CGI program of Zyxel ATP series firmware versions 4.32 t
CVE

CVE-2023-22918

A post-authentication information exposure vulnerability in the CGI program of Zyxel ATP series firmware versions 4.32 t

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.

MEDIUM · CVSS 6.5 EPSS 0.00314
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-359Exposure of Private Personal Information to an Unauthorized Actor
▤

Affected Products & Versions

51
zyxel atp200 firmware>= 4.32 and < 5.36
zyxel atp100 firmware>= 4.32 and < 5.36
zyxel atp700 firmware>= 4.32 and < 5.36
zyxel atp500 firmware>= 4.32 and < 5.36
zyxel atp100w firmware>= 4.32 and < 5.36
zyxel atp800 firmware>= 4.32 and < 5.36
zyxel usg flex 100 firmware>= 4.50 and < 5.36
zyxel usg flex 50 firmware>= 4.50 and < 5.36
▣

Scoring & Timeline

6.5
MEDIUM · CVSS v3.1 · security@zyxel.com.tw
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD24 Apr 2023 · 06:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-of-firewalls-and-apsPatchVendor Advisory
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