{"id":"CVE-2022-30526","aliases":["EUVD-2022-52386","GHSA-8f7x-36qv-2prx"],"status":"published","title":"A privilege escalation vulnerability was identified in the CLI command of Zyxel USG FLEX 100(W)...","description":"A privilege escalation vulnerability was identified in the CLI command of Zyxel USG FLEX 100(W) firmware versions 4.50 through 5.30, USG FLEX 200 firmware versions 4.50 through 5.30, USG FLEX 500 firmware versions 4.50 through 5.30, USG FLEX 700 firmware versions 4.50 through 5.30, USG FLEX 50(W) firmware versions 4.16 through 5.30, USG20(W)-VPN firmware versions 4.16 through 5.30, ATP series firmware versions 4.32 through 5.30, VPN series firmware versions 4.30 through 5.30, USG/ZyWALL series firmware versions 4.09 through 4.72, which could allow a local attacker to execute some OS commands with root privileges in some directories on a vulnerable device.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.01135,"percentile":0.66772,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-269"],"published":"2022-07-19T05:45:14Z","modified":"2026-06-17T04:43:46Z","exploits":[{"source":"metasploit","id":"exploit/linux/local/zyxel_suid_cp_lpe","title":"Zyxel Firewall SUID Binary Privilege Escalation","type":"exploit","platform":"Linux,Unix","date":"2022-06-14","verified":true,"url":"https://www.rapid7.com/db/modules/exploit/linux/local/zyxel_suid_cp_lpe"},{"source":"pocgithub","id":"greek0x0/CVE-2022-30526","title":"greek0x0/CVE-2022-30526","date":"2022-09-01","url":"https://github.com/greek0x0/CVE-2022-30526"}],"products":[{"vendor":"zyxel","product":"atp series firmware"},{"vendor":"zyxel","product":"atp100_firmware"},{"vendor":"zyxel","product":"atp100w_firmware"},{"vendor":"zyxel","product":"atp200_firmware"},{"vendor":"zyxel","product":"atp500_firmware"},{"vendor":"zyxel","product":"atp700_firmware"},{"vendor":"zyxel","product":"atp800_firmware"},{"vendor":"zyxel","product":"usg 20(w)-vpn firmware"},{"vendor":"zyxel","product":"usg flex 100(w) firmware"},{"vendor":"zyxel","product":"usg flex 200 firmware"},{"vendor":"zyxel","product":"usg flex 50(w) firmware"},{"vendor":"zyxel","product":"usg flex 500 firmware"},{"vendor":"zyxel","product":"usg flex 700 firmware"},{"vendor":"zyxel","product":"usg/zywall series firmware"},{"vendor":"zyxel","product":"usg20-vpn_firmware"},{"vendor":"zyxel","product":"usg20w-vpn_firmware"},{"vendor":"zyxel","product":"usg40_firmware"},{"vendor":"zyxel","product":"usg40w_firmware"},{"vendor":"zyxel","product":"usg60_firmware"},{"vendor":"zyxel","product":"usg60w_firmware"},{"vendor":"zyxel","product":"usg_2200-vpn_firmware"},{"vendor":"zyxel","product":"usg_flex_100w_firmware"},{"vendor":"zyxel","product":"usg_flex_200_firmware"},{"vendor":"zyxel","product":"usg_flex_500_firmware"},{"vendor":"zyxel","product":"usg_flex_50w_firmware"},{"vendor":"zyxel","product":"usg_flex_700_firmware"},{"vendor":"zyxel","product":"vpn series firmware"},{"vendor":"zyxel","product":"vpn1000_firmware"},{"vendor":"zyxel","product":"vpn100_firmware"},{"vendor":"zyxel","product":"vpn300_firmware"},{"vendor":"zyxel","product":"vpn50_firmware"},{"vendor":"zyxel","product":"zywall_1100_firmware"},{"vendor":"zyxel","product":"zywall_110_firmware"},{"vendor":"zyxel","product":"zywall_310_firmware"}],"references":[{"url":"https://www.zyxel.com/support/Zyxel-security-advisory-authenticated-directory-traversal-vulnerabilities-of-firewalls.shtml","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"http://packetstormsecurity.com/files/168202/Zyxel-Firewall-SUID-Binary-Privilege-Escalation.html","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-30526"},{"url":"https://github.com/advisories/GHSA-8f7x-36qv-2prx"}],"sources":{"cve":[{"id":"CVE-2022-30526","description":"A privilege escalation vulnerability was identified in the CLI command of Zyxel USG FLEX 100(W) firmware versions 4.50 through 5.30, USG FLEX 200 firmware versions 4.50 through 5.30, USG FLEX 500 firmware versions 4.50 through 5.30, USG FLEX 700 firmware versions 4.50 through 5.30, USG FLEX 50(W) firmware versions 4.16 through 5.30, USG20(W)-VPN firmware versions 4.16 through 5.30, ATP series firmware versions 4.32 through 5.30, VPN series firmware versions 4.30 through 5.30, USG/ZyWALL series firmware versions 4.09 through 4.72, which could allow a local attacker to execute some OS commands with root privileges in some directories on a vulnerable device.","status":"published","published":"2022-07-19T05:45:14Z","modified":"2024-08-03T06:48:36.418Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-269"],"updated_at":"2026-11-02T14:34:30.842561Z"}],"euvd":[{"id":"EUVD-2022-52386","description":"A privilege escalation vulnerability was identified in the CLI command of Zyxel USG FLEX 100(W) firmware versions 4.50 through 5.30, USG FLEX 200 firmware versions 4.50 through 5.30, USG FLEX 500 firmware versions 4.50 through 5.30, USG FLEX 700 firmware versions 4.50 through 5.30, USG FLEX 50(W) firmware versions 4.16 through 5.30, USG20(W)-VPN firmware versions 4.16 through 5.30, ATP series firmware versions 4.32 through 5.30, VPN series firmware versions 4.30 through 5.30, USG/ZyWALL series firmware versions 4.09 through 4.72, which could allow a local attacker to execute some OS commands with root privileges in some directories on a vulnerable device.","status":"published","published":"2022-07-19T05:45:14Z","modified":"2024-08-03T06:48:36Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-03T03:25:35.869088Z"}],"ghsa":[{"id":"GHSA-8f7x-36qv-2prx","title":"A privilege escalation vulnerability was identified in the CLI command of Zyxel USG FLEX 100(W)...","description":"A privilege escalation vulnerability was identified in the CLI command of Zyxel USG FLEX 100(W) firmware versions 4.50 through 5.30, USG FLEX 200 firmware versions 4.50 through 5.30, USG FLEX 500 firmware versions 4.50 through 5.30, USG FLEX 700 firmware versions 4.50 through 5.30, USG FLEX 50(W) firmware versions 4.16 through 5.30, USG20(W)-VPN firmware versions 4.16 through 5.30, ATP series firmware versions 4.32 through 5.30, VPN series firmware versions 4.30 through 5.30, USG/ZyWALL series firmware versions 4.09 through 4.72, which could allow a local attacker to execute some OS commands with root privileges in some directories on a vulnerable device.","status":"published","published":"2022-07-20T00:00:25Z","modified":"2023-01-29T05:01:41Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-269"],"updated_at":"2026-11-02T14:44:53.556707Z"}],"nvd":[{"id":"CVE-2022-30526","description":"A privilege escalation vulnerability was identified in the CLI command of Zyxel USG FLEX 100(W) firmware versions 4.50 through 5.30, USG FLEX 200 firmware versions 4.50 through 5.30, USG FLEX 500 firmware versions 4.50 through 5.30, USG FLEX 700 firmware versions 4.50 through 5.30, USG FLEX 50(W) firmware versions 4.16 through 5.30, USG20(W)-VPN firmware versions 4.16 through 5.30, ATP series firmware versions 4.32 through 5.30, VPN series firmware versions 4.30 through 5.30, USG/ZyWALL series firmware versions 4.09 through 4.72, which could allow a local attacker to execute some OS commands with root privileges in some directories on a vulnerable device.","status":"published","published":"2022-07-19T06:15:08.827Z","modified":"2026-06-17T04:43:46.583Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-269"],"updated_at":"2026-11-02T14:07:23.686531Z"}]}}