An incorrect permission assignment vulnerability in the PostgreSQL commands of the Zyxel USG FLEX H series uOS firmware versions from V1.20 through V1.31 could allow an authenticated local attacker with low privileges to gain access to the Linux shell and escalate their privileges by crafting malicious scripts or modifying system configurations with administrator-level access through a stolen token. Modifying the system configuration is only possible if the administrator has not logged out and the token remains valid.
References
Configurations
Configuration 1 (hide)
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History
30 Oct 2025, 17:55
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Zyxel usg Flex 50h
Zyxel Zyxel usg Flex 700h Zyxel uos Zyxel usg Flex 500h Zyxel usg Flex 100hp Zyxel usg Flex 100h Zyxel usg Flex 50hp Zyxel usg Flex 200h Zyxel usg Flex 200hp |
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| CPE | cpe:2.3:h:zyxel:usg_flex_200hp:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:usg_flex_50h:-:*:*:*:*:*:*:* cpe:2.3:o:zyxel:uos:*:*:*:*:*:*:*:* cpe:2.3:h:zyxel:usg_flex_100hp:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:usg_flex_100h:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:usg_flex_700h:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:usg_flex_50hp:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:usg_flex_200h:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:usg_flex_500h:-:*:*:*:*:*:*:* |
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| References | () https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-incorrect-permission-assignment-and-improper-privilege-management-vulnerabilities-in-usg-flex-h-series-firewalls-04-22-2025 - Vendor Advisory | |
| References | () http://seclists.org/fulldisclosure/2025/Apr/27 - Mailing List |
Information
Published : 2025-04-22 03:15
Updated : 2025-10-30 17:55
NVD link : CVE-2025-1731
Mitre link : CVE-2025-1731
CVE.ORG link : CVE-2025-1731
JSON object : View
Products Affected
zyxel
- usg_flex_200h
- usg_flex_50h
- usg_flex_500h
- usg_flex_50hp
- usg_flex_200hp
- usg_flex_100h
- usg_flex_100hp
- uos
- usg_flex_700h
CWE
CWE-732
Incorrect Permission Assignment for Critical Resource