CVE-2023-6764

Published Feb 20, 2024 CVSS 3.1 · 8.1 High EPSS < 1% KEV · Not listed
Description












A format string vulnerability in a function of the IPSec VPN feature in Zyxel ATP series firmware versions from 4.32 through 5.37 Patch 1, USG FLEX series firmware versions from 4.50 through 5.37 Patch 1, USG FLEX 50(W) series firmware versions from 4.16 through 5.37 Patch 1, and USG20(W)-VPN series firmware versions from 4.16 through 5.37 Patch 1 could allow an attacker to achieve unauthorized remote code execution by sending a sequence of specially crafted payloads containing an invalid pointer; however, such an attack would require detailed knowledge of an affected device’s memory layout and configuration.



Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2023-58976 A format string vulnerability in a function of the IPSec VPN feature in Zyxel ATP series firmware versions from 4.32 through 5.37 Patch 1, USG FLEX series firmware versions from 4.50 through 5.37 Patch 1, USG FLEX 50(W) series firmware versions from 4.16 through 5.37 Patch 1, and USG20(W)-VPN series firmware versions from 4.16 through 5.37 Patch 1 could allow an attacker to achieve unauthorized remote code execution by sending a sequence of specially crafted payloads containing an invalid pointer; however, such an attack would require detailed knowledge of an affected device’s memory layout and configuration.
History
Type Values Removed Values Added
Metrics epss

{'score': 0.0173}

epss

{'score': 0.02332}

Type Values Removed Values Added
First Time appeared Zyxel
Zyxel atp100
Zyxel atp100 Firmware
Zyxel atp100w
Zyxel atp100w Firmware
Zyxel atp200
Zyxel atp200 Firmware
Zyxel atp500
Zyxel atp500 Firmware
Zyxel atp700
Zyxel atp700 Firmware
Zyxel atp800
Zyxel atp800 Firmware
Zyxel usg20-vpn
Zyxel usg20-vpn Firmware
Zyxel usg20w-vpn
Zyxel usg20w-vpn Firmware
Zyxel usg Flex 100
Zyxel usg Flex 100 Firmware
Zyxel usg Flex 100ax
Zyxel usg Flex 100ax Firmware
Zyxel usg Flex 100h
Zyxel usg Flex 100h Firmware
Zyxel usg Flex 100w
Zyxel usg Flex 100w Firmware
Zyxel usg Flex 200
Zyxel usg Flex 200 Firmware
Zyxel usg Flex 200h
Zyxel usg Flex 200h Firmware
Zyxel usg Flex 200hp
Zyxel usg Flex 200hp Firmware
Zyxel usg Flex 50
Zyxel usg Flex 500
Zyxel usg Flex 500 Firmware
Zyxel usg Flex 500h
Zyxel usg Flex 500h Firmware
Zyxel usg Flex 50 Firmware
Zyxel usg Flex 50w
Zyxel usg Flex 50w Firmware
Zyxel usg Flex 700
Zyxel usg Flex 700 Firmware
Zyxel usg Flex 700h
Zyxel usg Flex 700h Firmware
CPEs cpe:2.3:h:zyxel:atp100:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:atp100w:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:atp200:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:atp500:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:atp700:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:atp800:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:usg20-vpn:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:usg20w-vpn:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:usg_flex_100:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:usg_flex_100ax:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:usg_flex_100h:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:usg_flex_100w:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:usg_flex_200:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:usg_flex_200h:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:usg_flex_200hp:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:usg_flex_500:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:usg_flex_500h:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:usg_flex_50:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:usg_flex_50w:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:usg_flex_700:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:usg_flex_700h:-:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:atp100_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:atp100_firmware:5.37:-:*:*:*:*:*:*
cpe:2.3:o:zyxel:atp100_firmware:5.37:patch1:*:*:*:*:*:*
cpe:2.3:o:zyxel:atp100w_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:atp100w_firmware:5.37:-:*:*:*:*:*:*
cpe:2.3:o:zyxel:atp100w_firmware:5.37:patch1:*:*:*:*:*:*
cpe:2.3:o:zyxel:atp200_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:atp200_firmware:5.37:-:*:*:*:*:*:*
cpe:2.3:o:zyxel:atp200_firmware:5.37:patch1:*:*:*:*:*:*
cpe:2.3:o:zyxel:atp500_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:atp500_firmware:5.37:-:*:*:*:*:*:*
cpe:2.3:o:zyxel:atp500_firmware:5.37:patch1:*:*:*:*:*:*
cpe:2.3:o:zyxel:atp700_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:atp700_firmware:5.37:-:*:*:*:*:*:*
cpe:2.3:o:zyxel:atp700_firmware:5.37:patch1:*:*:*:*:*:*
cpe:2.3:o:zyxel:atp800_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:atp800_firmware:5.37:-:*:*:*:*:*:*
cpe:2.3:o:zyxel:atp800_firmware:5.37:patch1:*:*:*:*:*:*
cpe:2.3:o:zyxel:usg20-vpn_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:usg20-vpn_firmware:5.37:-:*:*:*:*:*:*
cpe:2.3:o:zyxel:usg20-vpn_firmware:5.37:patch1:*:*:*:*:*:*
cpe:2.3:o:zyxel:usg20w-vpn_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:usg20w-vpn_firmware:5.37:-:*:*:*:*:*:*
cpe:2.3:o:zyxel:usg20w-vpn_firmware:5.37:patch1:*:*:*:*:*:*
cpe:2.3:o:zyxel:usg_flex_100_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:usg_flex_100_firmware:5.37:-:*:*:*:*:*:*
cpe:2.3:o:zyxel:usg_flex_100_firmware:5.37:patch1:*:*:*:*:*:*
cpe:2.3:o:zyxel:usg_flex_100ax_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:usg_flex_100ax_firmware:5.37:-:*:*:*:*:*:*
cpe:2.3:o:zyxel:usg_flex_100ax_firmware:5.37:patch1:*:*:*:*:*:*
cpe:2.3:o:zyxel:usg_flex_100h_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:usg_flex_100h_firmware:5.37:-:*:*:*:*:*:*
cpe:2.3:o:zyxel:usg_flex_100h_firmware:5.37:patch1:*:*:*:*:*:*
cpe:2.3:o:zyxel:usg_flex_100w_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:usg_flex_100w_firmware:5.37:-:*:*:*:*:*:*
cpe:2.3:o:zyxel:usg_flex_100w_firmware:5.37:patch1:*:*:*:*:*:*
cpe:2.3:o:zyxel:usg_flex_200_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:usg_flex_200_firmware:5.37:-:*:*:*:*:*:*
cpe:2.3:o:zyxel:usg_flex_200_firmware:5.37:patch1:*:*:*:*:*:*
cpe:2.3:o:zyxel:usg_flex_200h_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:usg_flex_200h_firmware:5.37:-:*:*:*:*:*:*
cpe:2.3:o:zyxel:usg_flex_200h_firmware:5.37:patch1:*:*:*:*:*:*
cpe:2.3:o:zyxel:usg_flex_200hp_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:usg_flex_200hp_firmware:5.37:-:*:*:*:*:*:*
cpe:2.3:o:zyxel:usg_flex_200hp_firmware:5.37:patch1:*:*:*:*:*:*
cpe:2.3:o:zyxel:usg_flex_500_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:usg_flex_500_firmware:5.37:-:*:*:*:*:*:*
cpe:2.3:o:zyxel:usg_flex_500_firmware:5.37:patch1:*:*:*:*:*:*
cpe:2.3:o:zyxel:usg_flex_500h_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:usg_flex_500h_firmware:5.37:-:*:*:*:*:*:*
cpe:2.3:o:zyxel:usg_flex_500h_firmware:5.37:patch1:*:*:*:*:*:*
cpe:2.3:o:zyxel:usg_flex_50_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:usg_flex_50_firmware:5.37:-:*:*:*:*:*:*
cpe:2.3:o:zyxel:usg_flex_50_firmware:5.37:patch1:*:*:*:*:*:*
cpe:2.3:o:zyxel:usg_flex_50w_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:usg_flex_50w_firmware:5.37:-:*:*:*:*:*:*
cpe:2.3:o:zyxel:usg_flex_50w_firmware:5.37:patch1:*:*:*:*:*:*
cpe:2.3:o:zyxel:usg_flex_700_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:usg_flex_700_firmware:5.37:-:*:*:*:*:*:*
cpe:2.3:o:zyxel:usg_flex_700_firmware:5.37:patch1:*:*:*:*:*:*
cpe:2.3:o:zyxel:usg_flex_700h_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:usg_flex_700h_firmware:5.37:-:*:*:*:*:*:*
cpe:2.3:o:zyxel:usg_flex_700h_firmware:5.37:patch1:*:*:*:*:*:*
Vendors & Products Zyxel
Zyxel atp100
Zyxel atp100 Firmware
Zyxel atp100w
Zyxel atp100w Firmware
Zyxel atp200
Zyxel atp200 Firmware
Zyxel atp500
Zyxel atp500 Firmware
Zyxel atp700
Zyxel atp700 Firmware
Zyxel atp800
Zyxel atp800 Firmware
Zyxel usg20-vpn
Zyxel usg20-vpn Firmware
Zyxel usg20w-vpn
Zyxel usg20w-vpn Firmware
Zyxel usg Flex 100
Zyxel usg Flex 100 Firmware
Zyxel usg Flex 100ax
Zyxel usg Flex 100ax Firmware
Zyxel usg Flex 100h
Zyxel usg Flex 100h Firmware
Zyxel usg Flex 100w
Zyxel usg Flex 100w Firmware
Zyxel usg Flex 200
Zyxel usg Flex 200 Firmware
Zyxel usg Flex 200h
Zyxel usg Flex 200h Firmware
Zyxel usg Flex 200hp
Zyxel usg Flex 200hp Firmware
Zyxel usg Flex 50
Zyxel usg Flex 500
Zyxel usg Flex 500 Firmware
Zyxel usg Flex 500h
Zyxel usg Flex 500h Firmware
Zyxel usg Flex 50 Firmware
Zyxel usg Flex 50w
Zyxel usg Flex 50w Firmware
Zyxel usg Flex 700
Zyxel usg Flex 700 Firmware
Zyxel usg Flex 700h
Zyxel usg Flex 700h Firmware
Weaknesses

Sources

Status
PUBLISHED
Assigner
Zyxel
Published
Updated
Aug 2, 2024, 8:42 AM
Reserved
Dec 13, 2023, 8:39 AM
Status
Analyzed
Published
Feb 20, 2024, 3:15 AM
Modified
Jun 17, 2026, 6:51 AM