CVE-2023-4398

Published Nov 28, 2023 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2023-54261 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.
History
Type Values Removed Values Added
First Time appeared Zyxel atp Firmware
Zyxel usg20w-vpn Firmware
Zyxel usg Flex 50w Firmware
Zyxel usg Flex Firmware
Zyxel vpn Firmware
CPEs cpe:2.3:o:zyxel:atp_firmware:0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:usg20w-vpn_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:usg_flex_50w_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:usg_flex_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:vpn_firmware:*:*:*:*:*:*:*:*
Vendors & Products Zyxel atp Firmware
Zyxel usg20w-vpn Firmware
Zyxel usg Flex 50w Firmware
Zyxel usg Flex Firmware
Zyxel vpn Firmware
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}