CVE-2020-10881: TP-Link AC1750 Firmware

Critical severity, CVSS 9.8. EPSS: 9.3% chance of exploitation in the next 30 days.

This vulnerability allows remote attackers to execute arbitrary code on affected installations of TP-Link Archer A7 Firmware Ver: 190726 AC1750 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of DNS responses. A crafted DNS message can trigger an overflow of a fixed-length, stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the root user. Was ZDI-CAN-9660.

Affected products

• TP-Link AC1750 Firmware: version 190726 only

Published 2020-03-25. Last modified 2026-06-17.