Vulnerability identifier: #VU78351
Vulnerability risk: Low
CVSSv3.1: 5.7 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-119
Exploitation vector: Local network
Exploit availability: No
Vulnerable software:
ATP series
Hardware solutions /
Routers for home users
USG FLEX series
Client/Desktop applications /
Antivirus software/Personal firewalls
VPN series
Client/Desktop applications /
Antivirus software/Personal firewalls
USG FLEX 50W
Hardware solutions /
Firmware
USG20W-VPN
Hardware solutions /
Firmware
Vendor: 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. A remote attacker on the local network can trigger memory corruption and cause a denial of service condition on the target system.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
ATP series: 4.32 - 5.36 Patch 2
USG FLEX series: 4.50 - 5.36 Patch 2
USG FLEX 50W: 4.16 - 5.36 Patch 2
USG20W-VPN: 4.16 - 5.36 Patch 2
VPN series: 4.30 - 5.36 Patch 2
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.