A post-authentication command injection vulnerability in Zyxel ATP series firmware versions from V4.32 through V5.40, USG FLEX series firmware versions from V4.50 through V5.40, USG FLEX 50(W) series firmware versions from V4.16 through V5.40, and USG20(W)-VPN series firmware versions from V4.16 through V5.40 could allow an authenticated attacker with administrator privileges to execute operating system (OS) commands on the affected device by passing a crafted string as an argument to a CLI command.
References
Configurations
Configuration 1 (hide)
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Configuration 2 (hide)
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Configuration 3 (hide)
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History
28 Oct 2025, 19:36
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:h:zyxel:usg_flex_500:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:usg_20w-vpn:*:*:*:*:*:*:*:* cpe:2.3:h:zyxel:usg_flex_100:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:atp100w:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:usg_flex_100w:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:atp100:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:atp800:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:atp700:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:usg_flex_700:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:usg_flex_100ax:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:usg_flex_50w:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:usg_flex_200:-:*:*:*:*:*:*:* cpe:2.3:o:zyxel:zld:*:*:*:*:*:*:*:* cpe:2.3:h:zyxel:usg_flex_50:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:usg_flex_50ax:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:atp200:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:atp500:-:*:*:*:*:*:*:* |
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| First Time |
Zyxel atp100
Zyxel usg Flex 200 Zyxel usg Flex 700 Zyxel usg Flex 50w Zyxel zld Zyxel atp200 Zyxel Zyxel atp800 Zyxel usg 20w-vpn Zyxel usg Flex 100w Zyxel atp500 Zyxel usg Flex 50 Zyxel usg Flex 500 Zyxel atp700 Zyxel usg Flex 100ax Zyxel atp100w Zyxel usg Flex 50ax Zyxel usg Flex 100 |
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| References | () https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-post-authentication-command-injection-and-missing-authorization-vulnerabilities-in-zld-firewalls-10-21-2025 - Vendor Advisory |
21 Oct 2025, 03:15
| Type | Values Removed | Values Added |
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| New CVE |
Information
Published : 2025-10-21 03:15
Updated : 2025-10-28 19:36
NVD link : CVE-2025-8078
Mitre link : CVE-2025-8078
CVE.ORG link : CVE-2025-8078
JSON object : View
Products Affected
zyxel
- usg_20w-vpn
- atp200
- atp500
- atp100w
- atp800
- usg_flex_50
- usg_flex_500
- usg_flex_50ax
- atp100
- usg_flex_700
- usg_flex_50w
- usg_flex_100ax
- usg_flex_100
- zld
- usg_flex_100w
- usg_flex_200
- atp700
CWE
CWE-78
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')