NULL pointer dereference in ATP series and USG FLEX series - CVE-2023-6397
Published: February 20, 2024
Vulnerability identifier: #VU86610
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-6397
CWE-ID: CWE-476
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vendor: ZyXEL Communications Corp.
Affected software:
ATP series
USG FLEX series
ATP series
USG FLEX series
Detailed vulnerability description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error. A remote attacker on the local network can use a specially crafted RAR compressed file and perform a denial of service (DoS) attack.
How to mitigate CVE-2023-6397
Install updates from vendor's website.