{"id":"CVE-2024-29972","published":"2024-06-04T01:24:58Z","modified":"2024-08-02T01:17:58Z","title":"** UNSUPPORTED WHEN ASSIGNED ** The command injection vulnerability in the CGI program \"remote_help-cgi\" in Zyxel…","vendor":"Zyxel","product":"NAS326 firmware","tier":"core","eol":null,"affectedVersions":[{"vendor":"Zyxel","product":"NAS326 firmware","versions":["< V5.21(AAZF.17)C0"]},{"vendor":"Zyxel","product":"NAS542 firmware","versions":["< V5.21(ABAG.14)C0"]}],"description":{"text":"** UNSUPPORTED WHEN ASSIGNED **\nThe command injection vulnerability in the CGI program \"remote_help-cgi\" in Zyxel NAS326 firmware versions before V5.21(AAZF.17)C0 and NAS542 firmware versions before V5.21(ABAG.14)C0 could allow an unauthenticated attacker to execute some operating system (OS) commands by sending a crafted HTTP POST request.","provenance":"source","from":"CVE.org"},"summary":{"text":"The command injection flaw lives in the \"remote_help-cgi\" CGI program of Zyxel NAS326 firmware (before V5.21(AAZF.17)C0) and NAS542 firmware (before V5.21(ABAG.14)C0). An unauthenticated attacker with network access to the device can execute some operating system commands by sending a crafted HTTP POST request, with no user interaction required.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-31T05:10:50Z"},"cvss":{"score":9.8,"severity":"CRITICAL","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","provenance":"source","from":"CVE.org CNA"},"epss":{"score":0.90349,"percentile":0.99798,"date":"2026-10-30","provenance":"source"},"kev":null,"vulncheckKev":{"dateAdded":"2025-06-07","exploitedFirstSeen":"2025-06-07","ransomware":false,"evidence":[{"url":"https://app.crowdsec.net/cti/cve-explorer/CVE-2024-29972","date":"2025-06-07"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2026-07-13&host_type=src&vulnerability=cve-2024-29972","date":"2026-07-13"},{"url":"https://previdian.com/CVE-2024-29972","date":"2026-07-13"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2026-07-14&host_type=src&vulnerability=cve-2024-29972","date":"2026-07-14"}],"evidenceTotal":4,"provenance":"source"},"exploited":true,"otx":{"pulseCount":0,"pulses":[],"provenance":"machine"},"cwes":[{"id":"CWE-78","name":"Improper Neutralization of Special Elements used in an OS Command"}],"references":[{"url":"https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-in-nas-products-06-04-2024","tags":["vendor-advisory"]},{"url":"https://outpost24.com/blog/zyxel-nas-critical-vulnerabilities/","tags":[]}],"techniques":[],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2024-26946","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2024-26946","exploited":false,"exploitedSince":null,"provenance":"source"},"exploits":[],"exploitSources":{"pocGithub":{"count":2,"skipped":0,"earliest":"2024-06-20","earliestUrl":"https://github.com/WanLiChangChengWanLiChang/CVE-2024-29972","repos":[{"name":"Pommaq/CVE-2024-29972-CVE-2024-29976-CVE-2024-29973-CVE-2024-29975-CVE-2024-29974-poc","url":"https://github.com/Pommaq/CVE-2024-29972-CVE-2024-29976-CVE-2024-29973-CVE-2024-29975-CVE-2024-29974-poc","stars":4,"created":"2024-06-30"},{"name":"WanLiChangChengWanLiChang/CVE-2024-29972","url":"https://github.com/WanLiChangChengWanLiChang/CVE-2024-29972","stars":1,"created":"2024-06-20"}]},"nuclei":[{"id":"CVE-2024-29972","name":"Zyxel NAS326 Firmware < V5.21(AAZF.17)C0 - NsaRescueAngel Backdoor Account","severity":"critical","path":"http/cves/2024/CVE-2024-29972.yaml","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2024/CVE-2024-29972.yaml"}],"first":{"date":"2024-06-20","source":"PoC-in-GitHub","url":"https://github.com/WanLiChangChengWanLiChang/CVE-2024-29972"},"provenance":"source"},"exploitRefs":[],"flow":[],"timeline":[{"date":"2024-06-04","kind":"published","label":"Published (CVE.org)","url":"https://www.cve.org/CVERecord?id=CVE-2024-29972","provenance":"source"},{"date":"2024-06-20","kind":"exploit-public","label":"First public exploit: PoC-in-GitHub","url":"https://github.com/WanLiChangChengWanLiChang/CVE-2024-29972","provenance":"source"},{"date":"2025-06-07","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://app.crowdsec.net/cti/cve-explorer/CVE-2024-29972","provenance":"source"}],"speed":{"daysToPublicExploit":16,"firstExploitFrom":"PoC-in-GitHub","daysToKev":null},"priority":{"score":66.8,"factors":[{"name":"In a KEV catalog","points":35.0,"detail":"listed in VulnCheck KEV"},{"name":"Recent KEV listing","points":0.0,"detail":"added 511 days ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":19.96,"detail":"percentile 0.9980"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":5.0,"detail":"2 PoC-in-GitHub repos; 1 nuclei template"},{"name":"Mentioned in OTX pulses","points":0.0,"detail":"0 pulses"},{"name":"CVSS severity","points":6.86,"detail":"base score 9.8"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}