Format string error in ZyXEL Communications Corp. products - CVE-2022-34747
Published: September 7, 2022
Vulnerability identifier: #VU67062
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2022-34747
CWE-ID: CWE-134
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: ZyXEL Communications Corp.
Affected software:
NAS326
NAS540
NAS542
NAS326
NAS540
NAS542
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a format string error. A remote attacker can use a specially crafted UDP packet and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2022-34747
Install updates from vendor's website.