CVE-2023-4398 — Zyxel / ATP series firmware

Description (CNA)

An integer overflow vulnerability in the source code of the QuickSec IPSec toolkit used in the VPN feature of the Zyxel ATP series firmware versions 4.32 through 5.37, USG FLEX series firmware versions 4.50 through 5.37, USG FLEX 50(W) series firmware versions 4.16 through 5.37, USG20(W)-VPN series firmware versions 4.16 through 5.37, and VPN series firmware versions 4.30 through 5.37, could allow an unauthenticated attacker to cause denial-of-service (DoS) conditions on an affected device by sending a crafted IKE packet.

Affected (CNA)

Vendor / product	Versions
Zyxel / ATP series firmware	affected versions 4.32 through 5.37
Zyxel / USG FLEX series firmware	affected versions 4.50 through 5.37
Zyxel / USG FLEX 50(W) series firmware	affected versions 4.16 through 5.37
Zyxel / USG20(W)-VPN series firmware	affected versions 4.16 through 5.37
Zyxel / VPN series firmware	affected versions 4.30 through 5.37

CWE

CWE-190

References

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-in-firewalls-and-aps

ADP enrichment

CVE

No English description supplied.

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-in-firewalls-and-aps

CISA-ADP

No English description supplied.

No references supplied.