{"id":"CVE-2020-29299","aliases":["EUVD-2020-21674","GHSA-g8hw-8grv-27jh"],"status":"published","title":"Certain Zyxel products allow command injection by an admin via an input string to chg_exp_pwd...","description":"Certain Zyxel products allow command injection by an admin via an input string to chg_exp_pwd during a password-change action. This affects VPN On-premise before ZLD V4.39 week38, VPN Orchestrator before SD-OS V10.03 week32, USG before ZLD V4.39 week38, USG FLEX before ZLD V4.55 week38, ATP before ZLD V4.55 week38, and NSG before 1.33 patch 4.","severity":{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.02372,"percentile":0.83959,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-77"],"published":"2020-12-27T05:51:45Z","modified":"2026-06-17T03:11:11Z","products":[{"vendor":"zyxel","product":"nsg_firmware"},{"vendor":"zyxel","product":"usg_flex_firmware"},{"vendor":"zyxel","product":"vpn_orchestrator"},{"vendor":"zyxel","product":"zld"}],"references":[{"url":"https://www.zyxel.com/us/en/support/security_advisories.shtml","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://www.zyxel.com/support/Zyxel-security-advisory-for-command-injection-vulnerability-of-firewalls.shtml","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-29299"},{"url":"https://github.com/advisories/GHSA-g8hw-8grv-27jh"}],"sources":{"cve":[{"id":"CVE-2020-29299","description":"Certain Zyxel products allow command injection by an admin via an input string to chg_exp_pwd during a password-change action. This affects VPN On-premise before ZLD V4.39 week38, VPN Orchestrator before SD-OS V10.03 week32, USG before ZLD V4.39 week38, USG FLEX before ZLD V4.55 week38, ATP before ZLD V4.55 week38, and NSG before 1.33 patch 4.","status":"published","published":"2020-12-27T05:51:45Z","modified":"2024-08-04T16:48:01.635Z","updated_at":"2026-11-02T14:35:55.460269Z"}],"euvd":[{"id":"EUVD-2020-21674","description":"Certain Zyxel products allow command injection by an admin via an input string to chg_exp_pwd during a password-change action. This affects VPN On-premise before ZLD V4.39 week38, VPN Orchestrator before SD-OS V10.03 week32, USG before ZLD V4.39 week38, USG FLEX before ZLD V4.55 week38, ATP before ZLD V4.55 week38, and NSG before 1.33 patch 4.","status":"published","published":"2020-12-27T05:51:45Z","modified":"2024-08-04T16:48:01Z","updated_at":"2026-11-03T03:07:07.919663Z"}],"ghsa":[{"id":"GHSA-g8hw-8grv-27jh","title":"Certain Zyxel products allow command injection by an admin via an input string to chg_exp_pwd...","description":"Certain Zyxel products allow command injection by an admin via an input string to chg_exp_pwd during a password-change action. This affects VPN On-premise before ZLD V4.39 week38, VPN Orchestrator before SD-OS V10.03 week32, USG before ZLD V4.39 week38, USG FLEX before ZLD V4.55 week38, ATP before ZLD V4.55 week38, and NSG before 1.33 patch 4.","status":"published","published":"2022-05-24T17:37:27Z","modified":"2023-01-29T05:05:51Z","cwes":["CWE-77"],"updated_at":"2026-11-02T14:45:53.268312Z"}],"nvd":[{"id":"CVE-2020-29299","description":"Certain Zyxel products allow command injection by an admin via an input string to chg_exp_pwd during a password-change action. This affects VPN On-premise before ZLD V4.39 week38, VPN Orchestrator before SD-OS V10.03 week32, USG before ZLD V4.39 week38, USG FLEX before ZLD V4.55 week38, ATP before ZLD V4.55 week38, and NSG before 1.33 patch 4.","status":"published","published":"2020-12-27T06:15:12.447Z","modified":"2026-06-17T03:11:11.8Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":9,"vector":"AV:N/AC:L/Au:S/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-77"],"updated_at":"2026-11-02T14:06:28.340168Z"}]}}