CVSS 3.1
8.8 highCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HCVE-2023-33011
High (8.8) in zyxel. EPSS 0.3% chance of exploitation in the next 30 days.
A format string vulnerability in the Zyxel ATP series firmware versions 5.10 through 5.36 Patch 2, USG FLEX series firmware versions 5.00 through 5.36 Patch 2, USG FLEX 50(W) series firmware versions 5.10 through 5.36 Patch 2, USG20(W)-VPN series firmware versions 5.10 through 5.36 Patch 2, and VPN series firmware versions 5.00 through 5.36 Patch 2, could allow an unauthenticated, LAN-based attacker to execute some OS commands by using a crafted PPPoE configuration on an affected device when the cloud management mode is enabled.
Severity
- EPSS
- 0.3% chance of exploitation in the next 30 days; higher than 27% of CVEs (scores of 2026-10-31)
- CWE
- CWE-134
- Published
- Modified
- Record from
- the NVD, synced
Affected
- zyxel:usg_20w-vpn_firmware
- zyxel:usg_2200-vpn_firmware
- zyxel:usg_flex_100_firmware
- zyxel:usg_flex_100w_firmware
- zyxel:usg_flex_200_firmware
- zyxel:usg_flex_500_firmware
- zyxel:usg_flex_50_firmware
- zyxel:usg_flex_50w_firmware
- zyxel:usg_flex_700_firmware
- zyxel:zywall_atp100_firmware
- zyxel:zywall_atp100w_firmware
- zyxel:zywall_atp200_firmware
- zyxel:zywall_atp500_firmware
- zyxel:zywall_atp700_firmware
- zyxel:zywall_atp800_firmware
- zyxel:zywall_vpn100_firmware
- zyxel:zywall_vpn2s_firmware
- zyxel:zywall_vpn300_firmware
- zyxel:zywall_vpn50_firmware
- zyxel:zywall_vpn_100_firmware
- zyxel:zywall_vpn_300_firmware
- zyxel:zywall_vpn_50_firmware