CVE-2023-33011 - CVE House

Back to Database

Status published High CVE-2023-33011

A format string vulnerability in the Zyxel ATP series firmware...

8.8 CVSS

Vulnerability Description

A format string vulnerability in the Zyxel ATP series firmware versions 5.10 through 5.36 Patch 2, USG FLEX series firmware versions 5.00 through 5.36 Patch 2, USG FLEX 50(W) series firmware versions 5.10 through 5.36 Patch 2, USG20(W)-VPN series firmware versions 5.10 through 5.36 Patch 2, and VPN series firmware versions 5.00 through 5.36 Patch 2, could allow an unauthenticated, LAN-based attacker to execute some OS commands by using a crafted PPPoE configuration on an affected device when the cloud management mode is enabled.

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-2023-33011

Check My Exposure

Credits & Attribution

No credits recorded in the NVD database.

References

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-in-firewalls-and-wlan-controllers

More from Zyxel

View All →

A missing authorization vulnerability in Zyxel ATP series firmware versions...

A post-authentication command injection vulnerability in the "priv" parameter of...

A post-authentication command injection vulnerability in Zyxel ATP series firmware...

A buffer overflow vulnerability in the URL parser of the...

An uncontrolled resource consumption vulnerability in the web server of...

Affected Vendor

Zyxel

View all reports →

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:

5.10 through 5.36 Patch 2, 5.00 through 5.36 Patch 2

Timeline

Official Publish: July 17th, 2023

Last Modified: November 7th, 2024

Added to House: July 22nd, 2026

CVSS Vectors

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

Weaknesses (CWE)

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.