CVE-2023-34140

published 2023-07-17

CVE-2023-34140: A buffer overflow vulnerability in the Zyxel ATP series firmware versions 4.32 through 5.36 Patch 2, USG FLEX series firmware versions 4.50 through 5.36 Patch…

Priority P4 28 medium 6.5 CVSS 3.1

AV A AC L PR N UI N S U C N I N A H

A buffer overflow vulnerability in the Zyxel ATP series firmware versions 4.32 through 5.36 Patch 2, USG FLEX series firmware versions 4.50 through 5.36 Patch 2, USG FLEX 50(W) series firmware versions 4.16 through 5.36 Patch 2, USG20(W)-VPN series firmware versions 4.16 through 5.36 Patch 2, VPN series firmware versions 4.30 through 5.36 Patch 2, NXC2500 firmware versions 6.10(AAIG.0) through 6.10(AAIG.3), and NXC5500 firmware versions 6.10(AAOS.0) through 6.10(AAOS.4), could allow an unauthenticated, LAN-based attacker to cause denial of service (DoS) conditions by sending a crafted request to the CAPWAP daemon.

Affected

31 ranges · showing 25

Vendor	Product	Version range	Fixed in
zyxel	atp_series_firmware	—	—
zyxel	nxc2500_firmware	—	—
zyxel	nxc2500_firmware	6.10\(aaig.0\) – 6.10\(aaig.3\)	—
zyxel	nxc5500_firmware	—	—
zyxel	nxc5500_firmware	6.10\(aaos.0\) – 6.10\(aaos.4\)	—
zyxel	usg20_vpn_series_firmware	—	—
zyxel	usg_20w-vpn_firmware	>= 4.16 < 5.37	5.37
zyxel	usg_2200-vpn_firmware	>= 4.30 < 5.37	5.37
zyxel	usg_flex_100_firmware	>= 4.50 < 5.37	5.37
zyxel	usg_flex_100w_firmware	>= 4.50 < 5.37	5.37
zyxel	usg_flex_200_firmware	>= 4.50 < 5.37	5.37
zyxel	usg_flex_500_firmware	>= 4.50 < 5.37	5.37
zyxel	usg_flex_50_firmware	>= 4.50 < 5.37	5.37
zyxel	usg_flex_50_series_firmware	—	—
zyxel	usg_flex_50w_firmware	>= 4.50 < 5.37	5.37
zyxel	usg_flex_700_firmware	>= 4.50 < 5.37	5.37
zyxel	usg_flex_series_firmware	—	—
zyxel	vpn_series_firmware	—	—
zyxel	zywall_atp100_firmware	>= 4.32 < 5.37	5.37
zyxel	zywall_atp100w_firmware	>= 4.32 < 5.37	5.37
zyxel	zywall_atp200_firmware	>= 4.32 < 5.37	5.37
zyxel	zywall_atp500_firmware	>= 4.32 < 5.37	5.37
zyxel	zywall_atp700_firmware	>= 4.32 < 5.37	5.37
zyxel	zywall_atp800_firmware	>= 4.32 < 5.37	5.37
zyxel	zywall_vpn100_firmware	>= 4.30 < 5.37	5.37

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