OS Command Injection in ZyXEL Communications Corp. products - CVE-2023-27992
Published: June 20, 2023 / Updated: June 23, 2023
Vulnerability identifier: #VU77532
CSH Severity: High
CVSS v4: 9.3 [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]
CVE-ID: CVE-2023-27992
CWE-ID: CWE-78
Exploitation vector: Remote access
Exploit availability:
The vulnerability is being exploited in the wild
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.
The vulnerability exists due to improper input validation. A remote unauthenticated attacker can pass specially crafted data to the application and execute arbitrary OS commands on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
NAS326
NAS540
NAS542
NAS540
NAS542
How to mitigate CVE-2023-27992
Install updates from vendor's website.
NAS326 - update to 5.21(AAZF.14)C0
NAS540 - update to 5.21(AATB.11)C0
NAS542 - update to 5.21(ABAG.11)C0
NAS540 - update to 5.21(AATB.11)C0
NAS542 - update to 5.21(ABAG.11)C0