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TI-2026-13655 Aliases CVE-2026-16348GHSA-55gr-958w-9j4g

Command Injection Vulnerability in VPN connection of Archer BE800

Priority MEDIUM 43CWE-78Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
High
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-78.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0215 82nd percentileScored 2026-11-07
Fix Fixed Archer BE800 v1 (TP-Link Systems Inc.): 1.4.2 Build 260708

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
TP-LinkArcher BE800 v1before 1.4.2 Build 2607081.4.2 Build 260708Patch availableCNA
  • Archer BE800 v1 VendorTP-Link Affected before 1.4.2 Build 260708 Fixed in 1.4.2 Build 260708 Patch available CNA

Remediation

  • Fix · CNA Archer BE800 v1 (TP-Link Systems Inc.) Fixed in 1.4.2 Build 260708

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    TP-Link Systems Archer BE800 V1 — tp-link.com/us/support/faq/5264

    2 records Highest priority Priority MEDIUM 2 MEDIUM

    Other records, highest priority first

    • TI-2026-08130 Command Injection Vulnerability in Parent Control of Multiple TP-Link Archer DevicesPriority MEDIUM 45
    Show all 2 records → Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-16348
  2. 2026-10-03 Alias added: GHSA-55gr-958w-9j4g

References

Patch 2

Advisory 1

  • TI-2023-16571 TP-Link TL-WR940N V2/V4, TL-WR841N V8/V10, and TL-WR740N V1/V2 was discovered to contain… KEVCVSS 3.1HIGH 8.8
  • TI-2023-01313 Command injection in TP-Link Archer AX21 KEVCVSS 3.1HIGH 8.8
  • TI-2020-14907 TP-Link TL-WA855RE V5 20200415-rel37464 devices allow an unauthenticated attacker (on the… KEVCVSS 3.1HIGH 8.8
  • TI-2025-08589 Authenticated RCE via Parental Control command injection KEVCVSS 4.0HIGH 8.6
  • TI-2015-02672 Directory traversal vulnerability in TP-LINK Archer C5 (1.2) with firmware before 150317… KEVCVSS 3.1HIGH 7.5
  • TI-2023-27456 Authentication bypass by spoofing in TP-Link TL-WR841N KEVCVSS 3.1MEDIUM 6.5
See all 636 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences