{"id":"CVE-2022-43390","url":"https://www.cyber-defence.io/tools/cve/CVE-2022-43390","generatedAt":"2026-10-27T17:29:43.257Z","title":"A command injection vulnerability in the CGI program of Zyxel NR7101 firmware prior to V1.15(ACCC.3)C0, which could allow an authenticated attacker to execute some OS commands on a vulnerable device by sending a crafted HTTP request.","description":"A command injection vulnerability in the CGI program of Zyxel NR7101 firmware prior to V1.15(ACCC.3)C0, which could allow an authenticated attacker to execute some OS commands on a vulnerable device by sending a crafted HTTP request.","published":"2023-01-11T02:15:11.000Z","lastModified":"2026-06-17T05:06:25.000Z","status":"Modified","sourceIdentifier":"security@zyxel.com.tw","cvss":{"version":"3.1","score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-78"],"affected":["zyxel/lte7480-m804 firmware","zyxel/lte7490-m904 firmware","zyxel/nebula nr5101 firmware","zyxel/nebula nr7101 firmware","zyxel/nr5101 firmware","zyxel/nr7101 firmware","zyxel/nr7102 firmware","zyxel/dx3301-t0 firmware","zyxel/dx4510-b1 firmware","zyxel/dx5401-b0 firmware","zyxel/emg3525-t50b firmware","zyxel/emg5523-t50b firmware","zyxel/emg5723-t50k firmware","zyxel/ex3301-t0 firmware","zyxel/ex3510-b0 firmware","zyxel/ex5401-b0 firmware","zyxel/ex5501-b0 firmware","zyxel/ex5510-b0 firmware","zyxel/ex5512-t0 firmware","zyxel/ex5600-t1 firmware","zyxel/ex5601-t0 firmware","zyxel/ex5601-t1 firmware","zyxel/vmg3927-t50k firmware","zyxel/vmg4005-b50a firmware","zyxel/vmg4005-b60a firmware","zyxel/vmg8623-t50b firmware","zyxel/vmg8825-t50k firmware","zyxel/ax7501-b0 firmware","zyxel/pm3100-t0 firmware","zyxel/pm5100-t0 firmware","zyxel/pm7300-t0 firmware","zyxel/pm7320-b0 firmware","zyxel/pmg5317-t20b firmware","zyxel/pmg5617-t20b2 firmware","zyxel/pmg5617ga firmware","zyxel/pmg5622ga firmware","zyxel/wx3100-t0 firmware","zyxel/wx3401-b0 firmware","zyxel/wx5600-t0 firmware"],"epss":{"score":0.01114,"percentile":0.65792,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (1.11%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-command-injection-and-buffer-overflow-vulnerabilities-of-cpe-fiber-onts-and-wifi-extenders","tags":["Vendor Advisory"],"source":"security@zyxel.com.tw"},{"url":"https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-command-injection-and-buffer-overflow-vulnerabilities-of-cpe-fiber-onts-and-wifi-extenders","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2022-43390","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}