What’s Vulnerable › Vulnerabilities

CVE-2026-78541: Command Injection in Parent Control of TP-Link Archer BE3600 v1

• Severity: high (CVSS 8.5 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-24 · updated 2026-10-12
• Weakness: CWE-78

Description

A stored OS command injection vulnerability exists in the parent-control module of TP-Link Archer BE3600 V1. An authenticated adjacent attacker with administrative access may store a crafted profile name containing shell metacharacters, which is later processed unsafely during daily cloud report generation and may result in arbitrary command execution. Successful exploitation may allow command execution on the affected device with potential impact to device confidentiality, integrity, and availability.

Affected products

• TP-Link Systems Inc. Archer BE3600 v1: before 1.2.6 Build 20260617 — fixed in 1.2.6 Build 20260617

How to fix

Upgrade to a fixed version: TP-Link Systems Inc. Archer BE3600 v1 1.2.6 Build 20260617. Check the vendor advisory for mitigations.

References

• https://www.tp-link.com/en/support/download/archer-be3600/v1/#Firmware
• https://www.tp-link.com/us/support/download/archer-be3600/v1.26/#Firmware
• https://www.tp-link.com/us/support/faq/5264/

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