{"cve":"CVE-2026-3841","nvd":{"published":"2026-03-12T18:16:26.107","modified":"2026-06-17T10:44:19.750","status":"Analyzed","description":"A command injection vulnerability has been identified in the Telnet command-line interface (CLI) of TP-Link TL-MR6400 v5.3.  This issue is caused by insufficient sanitization of data processed during specific CLI operations.  An authenticated attacker with elevated privileges may be able to execute arbitrary system commands.  Successful exploitation may lead to full device compromise, including potential loss of confidentiality, integrity, and availability.","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:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":8.8},"cwes":["CWE-78"],"references":["https://www.tp-link.com/en/support/download/tl-mr6400/v5.30/#Firmware","https://www.tp-link.com/us/support/faq/5016/"],"products":["tp-link:tl-mr6400_firmware"],"source":"nvd","synced_at":"2026-10-19T22:25:53.701907451+00:00"},"epss":{"cve":"CVE-2026-3841","score":0.01763,"percentile":0.78043,"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."]}