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CVE-2025-1732

22
FAUCET Score

CVE-2025-1732 is an improper privilege management vulnerability affecting Zyxel USG FLEX H series uOS firmware versions V1.31 and earlier. An authenticated local attacker with administrator privileges can exploit this flaw by uploading a crafted configuration file during the recovery process to escalate privileges on the device. With a CVSS score of 6.7 (Medium), this vulnerability has a local attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage for this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.31CPE matchmatch criteria
cpe:2.3:o:zyxel:uos:1.31:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.7MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
0.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.20%
Probability of exploitation in next 30 days
EPSS Percentile
10.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0020 is in the 52nd percentile among its peer group of 3,720 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

zyxelpatch availablevia llm_extracted
View patch
dockervendor investigatingvia llm_extracted
View patch

Vendor Advisories (2)

dockerllm-docker-111661ae1ac1d33e

Zyxel security advisory for incorrect permission assignment and improper privilege management vulnerabilities in USG FLEX H series firewalls

Apr 22, 2025
zyxelllm-zyxel-fb789198a25aa168

Zyxel security advisory for incorrect permission assignment and improper privilege management vulnerabilities in USG FLEX H series firewalls

Apr 22, 2025

References

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