Format string error in ZyXEL Communications Corp. products - CVE-2023-6399
Published: February 20, 2024
Vulnerability identifier: #VU86615
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-6399
CWE-ID: CWE-134
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vendor: ZyXEL Communications Corp.
Affected software:
ATP series
USG FLEX series
USG FLEX 50W
USG20W-VPN
ATP series
USG FLEX series
USG FLEX 50W
USG20W-VPN
Detailed vulnerability description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a format string error. A remote user on the local network can supply a specially crafted input that contains format string specifiers and cause a denial of service condition on the target system.
How to mitigate CVE-2023-6399
Install updates from vendor's website.