Zyxel fixes 2 vulnerabilities

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[TLP:CLEAR] Zyxel fixes 2 vulnerabilities

Zyxel version 1.32 fixes 2 vulnerabilities in the uOS firmware for USG FLEX H series firewalls [1].

Zyxel USG FLEX H uOS - privilege escalation (CVE-2025-1731)

CVSS 7.8 (High)

Allows an authenticated local attacker, due to incorrect permission settings of PostgreSQL commands, to gain unauthorized access to the Linux shell, escalate their privileges and, using a stolen token, modify the system configuration at the administrator level [1]. Modifying the configuration is only possible if the administrator has not logged out and the token is still valid.

The vulnerability is present in product:

uOS:uOS;>=1.20,<=1.31;

CVSS: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

More information:

CVE-2025-1731 at cve.org, NVD
CWE-732: Incorrect Permission Assignment for Critical Resource at cwe.mitre.org

The vulnerability was publicly disclosed 21. 4. 2025.

Zyxel USG FLEX H uOS - privilege escalation (CVE-2025-1732)

CVSS 6.7 (Medium)

Allows an authenticated local attacker with administrator privileges, due to improper privilege management for the restore function, to upload a modified configuration file and escalate their privileges on the vulnerable device [1].

The vulnerability is present in product:

uOS:uOS;==V1.31;

CVSS: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

More information:

CVE-2025-1732 at cve.org, NVD
CWE-269: Improper Privilege Management at cwe.mitre.org

The vulnerability was publicly disclosed 21. 4. 2025.

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[TLP:CLEAR] Zyxel fixes 2 vulnerabilities

Zyxel USG FLEX H uOS - privilege escalation (CVE-2025-1731)

CVSS 7.8 (High)

Zyxel USG FLEX H uOS - privilege escalation (CVE-2025-1732)

CVSS 6.7 (Medium)

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