What is the severity of CVE-2025-1731?

CVE-2025-1731 has been rated as critical due to the potential for privilege escalation.

How do I fix CVE-2025-1731?

To remediate CVE-2025-1731, upgrade the USG FLEX H series uOS firmware to a version higher than V1.31.

Who is affected by CVE-2025-1731?

CVE-2025-1731 affects users of the USG FLEX H series uOS firmware versions from V1.20 through V1.31.

What type of vulnerability is CVE-2025-1731?

CVE-2025-1731 is an incorrect permission assignment vulnerability that allows for privilege escalation.

Vulnerability/
CVE-2025-1731

high

7.8

CWE

732

22/4/2025

24/4/2025

CVE-2025-1731

Q: Can an attacker exploit CVE-2025-1731 remotely?

No, CVE-2025-1731 requires an authenticated local attacker with low privileges to exploit the vulnerability.

First published: Tue Apr 22 2025(Updated: )

An incorrect permission assignment vulnerability in the PostgreSQL commands of the 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.

Credit: security@zyxel.com.tw

Affected Software	Affected Version	How to fix
USG FLEX H series uOS firmware	>=V1.20<=V1.31

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Reference Links

Frequently Asked Questions

What is the severity of CVE-2025-1731?
CVE-2025-1731 has been rated as critical due to the potential for privilege escalation.
How do I fix CVE-2025-1731?
To remediate CVE-2025-1731, upgrade the USG FLEX H series uOS firmware to a version higher than V1.31.
Who is affected by CVE-2025-1731?
CVE-2025-1731 affects users of the USG FLEX H series uOS firmware versions from V1.20 through V1.31.
What type of vulnerability is CVE-2025-1731?
CVE-2025-1731 is an incorrect permission assignment vulnerability that allows for privilege escalation.
Can an attacker exploit CVE-2025-1731 remotely?
No, CVE-2025-1731 requires an authenticated local attacker with low privileges to exploit the vulnerability.

collector/mitre-cve
source/MITRE
agent/weakness
agent/references
agent/first-publish-date
agent/description
agent/type
agent/guess-ai
agent/software-canonical-lookup
agent/software-canonical-lookup-request
agent/softwarecombine
agent/author
agent/source
agent/severity
agent/event
agent/tags
agent/last-modified-date
collector/nvd-api
source/NVD
vendor/usg
canonical/usg flex h series uos firmware

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