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Vulnerability record · CVE-2026-16348 · published 24 August 2026

CVE-2026-16348: OS command injection vulnerability

An authenticated command injection vulnerability in TP-Link Archer BE800 V1 allows an attacker with administrative access to execute arbitrary system commands with root privileges by injecting shell metacharacters via a VPN connection.  Successful exploitation may enable persistent backdoors, credential theft, LAN reconnaissance, and router-assisted attacks against connected devices.

8.5 CVSS 4.0 High EPSS 2.0% · top 20.5% CWE-78 · OS command injection Awaiting Analysis
8.5CVSS 4.0 base score
2.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
28 Aug 2026Last modified by NVD

Description

An authenticated command injection vulnerability in TP-Link Archer BE800 V1 allows an attacker with administrative access to execute arbitrary system commands with root privileges by injecting shell metacharacters via a VPN connection.  Successful exploitation may enable persistent backdoors, credential theft, LAN reconnaissance, and router-assisted attacks against connected devices.

CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://www.tp-link.com/en/support/download/archer-be800/v1/#Firmware
https://www.tp-link.com/us/support/download/archer-be800/v1/#Firmware
https://www.tp-link.com/us/support/faq/5264/

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Source: NIST National Vulnerability Database (record CVE-2026-16348), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.