CVE-2025-1732

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.

CVSS v3 6.7 MEDIUM

6.7^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 0.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
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	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:zyxel:uos:1.31:*:*:*:*:*:*:*

OR	cpe:2.3:h:zyxel:usg_flex_100h:-:::::::*
	cpe:2.3:h:zyxel:usg_flex_100hp:-:::::::*
	cpe:2.3:h:zyxel:usg_flex_200h:-:::::::*
	cpe:2.3:h:zyxel:usg_flex_200hp:-:::::::*
	cpe:2.3:h:zyxel:usg_flex_500h:-:::::::*
	cpe:2.3:h:zyxel:usg_flex_50h:-:::::::*
	cpe:2.3:h:zyxel:usg_flex_50hp:-:::::::*
	cpe:2.3:h:zyxel:usg_flex_700h:-:::::::*

History

No history.

Information

Published : 2025-04-22 03:15

Updated : 2025-10-30 17:56

NVD link : CVE-2025-1732

Mitre link : CVE-2025-1732

CVE.ORG link : CVE-2025-1732

JSON object : View

Products Affected

zyxel

usg_flex_500h
usg_flex_50hp
usg_flex_50h
usg_flex_700h
usg_flex_100h
usg_flex_200h
usg_flex_200hp
uos
usg_flex_100hp

CWE

CWE-269

Improper Privilege Management

{"id": "CVE-2025-1732", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security@zyxel.com.tw", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.7, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 0.8}]}, "published": "2025-04-22T03:15:21.337", "references": [{"url": "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", "tags": ["Vendor Advisory"], "source": "security@zyxel.com.tw"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security@zyxel.com.tw", "description": [{"lang": "en", "value": "CWE-269"}]}], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "Una vulnerabilidad de gesti\u00f3n de privilegios inadecuada en la funci\u00f3n de recuperaci\u00f3n de la versi\u00f3n de firmware uOS V1.31 y anteriores de la serie USG FLEX H podr\u00eda permitir que un atacante local autenticado con privilegios de administrador cargue un archivo de configuraci\u00f3n manipulado y escale privilegios en un dispositivo vulnerable."}], "lastModified": "2025-10-30T17:56:11.717", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:zyxel:uos:1.31:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "51F4069E-611B-4A4E-883A-F51DE9FF7B9E"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:zyxel:usg_flex_100h:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "ED28D5ED-B21A-4CD6-947E-9C21EA801B7D"}, {"criteria": "cpe:2.3:h:zyxel:usg_flex_100hp:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "ACCFC4B1-37DD-4BF7-86A9-5F0A9A2C1D07"}, {"criteria": "cpe:2.3:h:zyxel:usg_flex_200h:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "09D15ECD-4942-407A-A62E-9785568C6B78"}, {"criteria": "cpe:2.3:h:zyxel:usg_flex_200hp:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "FD7E9028-1ECB-4D88-84D8-CFC589B429AE"}, {"criteria": "cpe:2.3:h:zyxel:usg_flex_500h:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "DE57BCA4-8631-460A-BFE3-BB765E5D009F"}, {"criteria": "cpe:2.3:h:zyxel:usg_flex_50h:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "875DC0B8-0189-4952-9FD8-00970F4C72F5"}, {"criteria": "cpe:2.3:h:zyxel:usg_flex_50hp:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "F3697878-4927-4381-BA26-3FD9A08D7661"}, {"criteria": "cpe:2.3:h:zyxel:usg_flex_700h:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "8832743A-99FA-417E-BCE1-4BF7D4CEF9BE"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "security@zyxel.com.tw"}