8.8

CVE-2023-27991

The post-authentication command injection vulnerability in the CLI command 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, and VPN series firmware versions 4.30 through 5.35, which could allow an authenticated attacker to execute some OS commands remotely.

Data is provided by the National Vulnerability Database (NVD)
Zyxel ≫ Atp200 Firmware Version >= 4.32 < 5.36
   Zyxel ≫ Atp200 Version-
Zyxel ≫ Atp100 Firmware Version >= 4.32 < 5.36
   Zyxel ≫ Atp100 Version-
Zyxel ≫ Atp700 Firmware Version >= 4.32 < 5.36
   Zyxel ≫ Atp700 Version-
Zyxel ≫ Atp500 Firmware Version >= 4.32 < 5.36
   Zyxel ≫ Atp500 Version-
Zyxel ≫ Atp100w Firmware Version >= 4.32 < 5.36
   Zyxel ≫ Atp100w Version-
Zyxel ≫ Atp800 Firmware Version >= 4.32 < 5.36
   Zyxel ≫ Atp800 Version-
Zyxel ≫ Usg Flex 100 Firmware Version >= 4.50 < 5.36
   Zyxel ≫ Usg Flex 100 Version-
Zyxel ≫ Usg Flex 50 Firmware Version >= 4.50 < 5.36
   Zyxel ≫ Usg Flex 50 Version-
Zyxel ≫ Usg Flex 200 Firmware Version >= 4.50 < 5.36
   Zyxel ≫ Usg Flex 200 Version-
Zyxel ≫ Usg Flex 500 Firmware Version >= 4.50 < 5.36
   Zyxel ≫ Usg Flex 500 Version-
Zyxel ≫ Usg Flex 700 Firmware Version >= 4.50 < 5.36
   Zyxel ≫ Usg Flex 700 Version-
Zyxel ≫ Usg Flex 100w Firmware Version >= 4.50 < 5.36
   Zyxel ≫ Usg Flex 100w Version-
Zyxel ≫ Usg 20w-vpn Firmware Version >= 4.16 < 5.36
   Zyxel ≫ Usg 20w-vpn Version-
Zyxel ≫ Usg Flex 50w Firmware Version >= 4.16 < 5.36
   Zyxel ≫ Usg Flex 50w Version-
Zyxel ≫ Usg20-vpn Firmware Version >= 4.30 < 5.36
   Zyxel ≫ Usg20-vpn Version-
Zyxel ≫ Vpn100 Firmware Version >= 4.30 < 5.36
   Zyxel ≫ Vpn100 Version-
Zyxel ≫ Vpn1000 Firmware Version >= 4.30 < 5.36
   Zyxel ≫ Vpn1000 Version-
Zyxel ≫ Vpn300 Firmware Version >= 4.30 < 5.36
   Zyxel ≫ Vpn300 Version-
Zyxel ≫ Vpn50 Firmware Version >= 4.30 < 5.36
   Zyxel ≫ Vpn50 Version-
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 1.03% 0.76
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 8.8 2.8 5.9
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
security@zyxel.com.tw 8.8 2.8 5.9
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.