CVE-2025-1731
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...
- Published
- Apr 22, 2025
- Updated
- Feb 26, 2026
- Assigning CNA
- Zyxel
- Evidence observed
- May 18, 2025
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLow · next 30 days
- Percentile
- 59.0%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
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.
Sources
4- exploitsExploit
Public exploit repository covering local privilege escalation, buffer overflows, and database exploits across Linux, Solaris, AIX, OpenBSD, Zyxel, Oracle, and MySQL.
- advisoriesInformational
A collection of my public security advisories.
- vulnsResearch
HN Security's advisories.
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