{"id":"CVE-2025-8078","state":"PUBLISHED","title":"A post-authentication command injection vulnerability in Zyxel ATP series firmware versions from V4.32 through V5.40, USG FLEX series firmware versions from V4.50 through V5.40, US","description":"A post-authentication command injection vulnerability in Zyxel ATP series firmware versions from V4.32 through V5.40, USG FLEX series firmware versions from V4.50 through V5.40, USG FLEX 50(W) series firmware versions from V4.16 through V5.40, and USG20(W)-VPN series firmware versions from V4.16 through V5.40 could allow an authenticated attacker with administrator privileges to execute operating system (OS) commands on the affected device by passing a crafted string as an argument to a CLI command.","publishedAt":"2025-10-21T01:49:29.266Z","updatedAt":"2026-02-26T16:57:22.696Z","severity":{"score":7.2,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","source":"Zyxel"},"assigner":"Zyxel","products":["Zyxel ATP series firmware","Zyxel USG FLEX series firmware","Zyxel USG FLEX 50(W) series firmware","Zyxel USG20(W)-VPN series firmware"],"affected":[{"vendor":"Zyxel","product":"ATP series firmware","defaultStatus":"unaffected","versions":[{"version":"versions from V4.32 through V5.40","status":"affected"}]},{"vendor":"Zyxel","product":"USG FLEX series firmware","defaultStatus":"unaffected","versions":[{"version":"version from V4.50 through V5.40","status":"affected"}]},{"vendor":"Zyxel","product":"USG FLEX 50(W) series firmware","defaultStatus":"unaffected","versions":[{"version":"versions from V4.16 through V5.40","status":"affected"}]},{"vendor":"Zyxel","product":"USG20(W)-VPN series firmware","defaultStatus":"unaffected","versions":[{"version":"versions from V4.16 through V5.40","status":"affected"}]}],"references":["https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-post-authentication-command-injection-and-missing-authorization-vulnerabilities-in-zld-firewalls-10-21-2025"],"weaknesses":["CWE-78"],"ingestedAt":"2026-10-29T20:10:04.440Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/8xxx/CVE-2025-8078.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-8078","state":"PUBLISHED","datePublished":"2025-10-21T01:49:29.266Z","dateUpdated":"2026-02-26T16:57:22.696Z","assignerShortName":"Zyxel","assignerOrgId":"96e50032-ad0d-4058-a115-4d2c13821f9f","dateReserved":"2025-07-23T09:10:08.765Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"A post-authentication command injection vulnerability in Zyxel ATP series firmware versions from V4.32 through V5.40, USG FLEX series firmware versions from V4.50 through V5.40, USG FLEX 50(W) series firmware versions from V4.16 through V5.40, and USG20(W)-VPN series firmware versions from V4.16 through V5.40 could allow an authenticated attacker with administrator privileges to execute operating system (OS) commands on the affected device by passing a crafted string as an argument to a CLI command."}],"affected":[{"vendor":"Zyxel","product":"ATP series firmware","defaultStatus":"unaffected","versions":[{"version":"versions from V4.32 through V5.40","status":"affected"}]},{"vendor":"Zyxel","product":"USG FLEX series firmware","defaultStatus":"unaffected","versions":[{"version":"version from V4.50 through V5.40","status":"affected"}]},{"vendor":"Zyxel","product":"USG FLEX 50(W) series firmware","defaultStatus":"unaffected","versions":[{"version":"versions from V4.16 through V5.40","status":"affected"}]},{"vendor":"Zyxel","product":"USG20(W)-VPN series firmware","defaultStatus":"unaffected","versions":[{"version":"versions from V4.16 through V5.40","status":"affected"}]}],"references":[{"url":"https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-post-authentication-command-injection-and-missing-authorization-vulnerabilities-in-zld-firewalls-10-21-2025","tags":["vendor-advisory"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.2,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"HIGH","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-78","description":"CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"Zyxel","orgId":"96e50032-ad0d-4058-a115-4d2c13821f9f","dateUpdated":"2025-10-21T01:49:29.266Z"},"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2025-8078","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"version":"2.0.3","timestamp":"2025-10-22T03:55:12.409352Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-02-26T16:57:22.696Z"}}]}}}