#VU48673 Buffer overflow in ZyXEL Communications Corp. products
Published: November 26, 2020
Vulnerability identifier: #VU48673
Vulnerability risk: High
CVSSv4.0: 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: N/A
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
VPN series
USG series
USG FLEX series
Unified Pro series
Unified series
Standalone series
VPN series
USG series
USG FLEX series
Unified Pro series
Unified series
Standalone series
Software vendor:
ZyXEL Communications Corp.
ZyXEL Communications Corp.
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in the "fbwifi_continue" CGI program. A remote attacker can trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install updates from vendor's website.