{"cve":"CVE-2026-3227","nvd":{"published":"2026-03-16T14:19:47.257","modified":"2026-07-01T18:16:32.707","status":"Analyzed","description":"A command injection vulnerability was identified in TP-Link TL-WR802N v4, TL-WR841N v14, and TL-WR840N v6 due to improper neutralization of special elements used in an OS command.  In the router configuration import function allows an authenticated attacker to upload a crafted configuration file that results in execution of OS commands with root privileges during port-trigger processing.  \nSuccessful exploitation allows an authenticated attacker to execute system commands with root privileges, leading to full device compromise.","cvss_v4":{"vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":8.5},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","score":6.8},"cwes":["CWE-78"],"references":["https://www.tp-link.com/en/support/download/tl-wr802n/v4/#Firmware","https://www.tp-link.com/en/support/download/tl-wr840n/v6/#Firmware","https://www.tp-link.com/en/support/download/tl-wr841n/v14/#Firmware","https://www.tp-link.com/us/support/download/tl-wr802n/v4/#Firmware","https://www.tp-link.com/us/support/download/tl-wr841n/v14/#Firmware"],"products":["tp-link:tl-wr802n_firmware","tp-link:tl-wr840n_firmware","tp-link:tl-wr841n_firmware"],"source":"nvd","synced_at":"2026-10-19T22:26:19.218427112+00:00"},"epss":{"cve":"CVE-2026-3227","score":0.01924,"percentile":0.79937,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}