CVE-2023-5650 - CVE House
Back to Database
Status published Medium CVE-2023-5650

An improper privilege management vulnerability in the ZySH of the...

Vulnerability Description

An improper privilege management vulnerability in the ZySH of the Zyxel ATP series firmware versions 4.32 through 5.37, USG FLEX series firmware versions 4.50 through 5.37, USG FLEX 50(W) series firmware versions 4.16 through 5.37, USG20(W)-VPN series firmware versions 4.16 through 5.37, and VPN series firmware versions 4.30 through 5.37, could allow an authenticated local attacker to modify the URL of the registration page in the web GUI of an affected device.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2023-5650

Credits & Attribution

No credits recorded in the NVD database.

References

More from Zyxel

View All →
CVE-2025-9133
A missing authorization vulnerability in Zyxel ATP series firmware versions...
High 8.1
CVE-2025-8693
A post-authentication command injection vulnerability in the "priv" parameter of...
High 8.8
CVE-2025-8078
A post-authentication command injection vulnerability in Zyxel ATP series firmware...
High 7.2
CVE-2025-7673
A buffer overflow vulnerability in the URL parser of the...
Critical 9.8
CVE-2025-6599
An uncontrolled resource consumption vulnerability in the web server of...
Medium 5.3

Affected Vendor

Affected Software

ATP series firmware, USG FLEX series firmware, USG FLEX 50(W) series firmware, USG20(W)-VPN series firmware, VPN series firmware
Vulnerable Versions:
versions 4.32 through 5.37, versions 4.50 through 5.37, versions 4.16 through 5.37, versions 4.30 through 5.37

Timeline

Official Publish: November 28th, 2023
Last Modified: August 2nd, 2024
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Weaknesses (CWE)

CWE-269

MITRE ATT&CK TTPs

T1078 Valid Accounts
Persistence
T1098 Account Manipulation
Privilege Escalation
T1548 Abuse Elevation Control Mechanism
Privilege Escalation
T1222 File and Directory Permissions Modification
Defense Evasion
T1134 Access Token Manipulation
Defense Evasion