{"id":"CVE-2025-13943","url":"https://www.cyber-defence.io/tools/cve/CVE-2025-13943","generatedAt":"2026-10-28T00:21:03.567Z","title":"A post-authentication command injection vulnerability in the log file download function of the Zyxel EX3301-T0 firmware versions through 5.50(ABVY.7)C0 could allow an authenticated attacker to execute operating system (OS) commands on an affected device.","description":"A post-authentication command injection vulnerability in the log file download function of the Zyxel EX3301-T0 firmware versions through 5.50(ABVY.7)C0 could allow an authenticated attacker to execute operating system (OS) commands on an affected device.","published":"2026-02-24T03:16:00.000Z","lastModified":"2026-06-17T08:35:01.000Z","status":"Analyzed","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/ex5601-t1 firmware","zyxel/ex7501-b0 firmware","zyxel/ex7710-b0 firmware","zyxel/gm4100-b0 firmware","zyxel/pm7500-00 firmware","zyxel/vmg3625-t50b firmware","zyxel/vmg4005-b50a firmware","zyxel/vmg4005-b60a firmware","zyxel/ax7501-b1 firmware","zyxel/pe3301-00 firmware","zyxel/pe5301-01 firmware","zyxel/pm3100-t0 firmware","zyxel/pm5100-t0 firmware","zyxel/pm5100-t1 firmware","zyxel/pm7300-t0 firmware","zyxel/px3321-t1 firmware","zyxel/px5301-t0 firmware","zyxel/vmg8623-t50b firmware","zyxel/we3300-00 firmware","zyxel/wx3100-t0 firmware","zyxel/wx3401-b1 firmware","zyxel/wx5600-t0 firmware","zyxel/wx5610-b0 firmware","zyxel/dm4200-b0 firmware","zyxel/we4600-00 firmware","zyxel/emg6726-b10a firmware","zyxel/am7510-00 firmware","zyxel/vmg4927-b50a firmware","zyxel/ex5601-t0 firmware","zyxel/ex5512-t0 firmware","zyxel/ex5510-b0 firmware","zyxel/ex5401-b1 firmware","zyxel/ex3600-t0 firmware","zyxel/ex3510-b1 firmware","zyxel/ex3510-b0 firmware","zyxel/ex3501-t0 firmware","zyxel/ex3500-t0 firmware","zyxel/ex3301-t0 firmware","zyxel/ex3300-t1 firmware","zyxel/ex3300-t0 firmware","zyxel/ex2210-t0 firmware","zyxel/emg5523-t50b firmware","zyxel/emg3525-t50b firmware","zyxel/ee6510-10 firmware","zyxel/dx3300-t0 firmware","zyxel/dx3300-t1 firmware","zyxel/dx3301-t0 firmware","zyxel/dx4510-b0 firmware","zyxel/dx4510-b1 firmware","zyxel/dx5401-b1 firmware","zyxel/ee3301-00 firmware","zyxel/ee5301-00 firmware"],"epss":{"score":0.01554,"percentile":0.74974,"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 (1.55%). 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-null-pointer-dereference-and-command-injection-vulnerabilities-in-certain-4g-lte-5g-nr-cpe-dsl-ethernet-cpe-fiber-onts-security-routers-and-wireless-extenders-02-24-2026","tags":["Vendor Advisory"],"source":"security@zyxel.com.tw"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-13943","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."}