#VU76985 Buffer overflow in ZyXEL Communications Corp. products - CVE-2023-27989
Published: June 6, 2023
Vulnerability identifier: #VU76985
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2023-27989
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
LTE7480-M804
LTE7490-M904
NR7101
Nebula NR7101
LTE7480-M804
LTE7490-M904
NR7101
Nebula NR7101
Software vendor:
ZyXEL Communications Corp.
ZyXEL Communications Corp.
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error in the CGI program. A remote user can send a specially crafted HTTP request, trigger memory corruption and cause a denial of service condition on the target system.
Remediation
Install updates from vendor's website.