CVE-2025-1732

MEDIUM

Zyxel USG FLEX H uOS <= V1.31 - Authenticated Privilege Escalation via Crafted Configuration File Upload

Title source: llm

Description

An improper privilege management vulnerability in the recovery function of the Zyxel USG FLEX H series uOS firmware version V1.31 and earlier could allow an authenticated local attacker with administrator privileges to upload a crafted configuration file and escalate privileges on a vulnerable device.

References (1)

Core 1

Core References

Vendor Advisory vendor-advisory

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

Scores

CVSS v3 6.7

EPSS 0.0008

EPSS Percentile 23.3%

Attack Vector LOCAL

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

CWE

CWE-269

Status published

Products (1)

zyxel/uos 1.31

Published Apr 22, 2025

Tracked Since Feb 18, 2026