CVE-2021-27246: TP-Link AC1750 sync-server Stack-based Buffer Overflow Remote Code Execution Vulnerability
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link Archer A7 AC1750 1.0.15 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of MAC addresses by the tdpServer endpoint. A crafted TCP message can write stack pointers to the stack. An attacker can leverage this vulnerability to execute code in the context of the root user. Was ZDI-CAN-12306.
Other sources
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link Archer A7 AC1750 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of MAC addresses by the tdpServer endpoint. A crafted TCP message can write stack pointers to the stack. An attacker can leverage this vulnerability to execute code in the context of the root user.
Affected Software
Event History
Frequently Asked Questions
What is CVE-2021-27246?
CVE-2021-27246 is a vulnerability that allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link Archer A7 AC1750 1.0.15 routers.
How does CVE-2021-27246 impact TP-Link AC1750 routers?
CVE-2021-27246 allows attackers to execute arbitrary code on TP-Link Archer A7 AC1750 1.0.15 routers without authentication.
What is the severity of CVE-2021-27246?
CVE-2021-27246 is considered a high severity vulnerability with a CVSS score of 8 out of 10.
How can I check if my TP-Link AC1750 router is affected by CVE-2021-27246?
To check if your TP-Link AC1750 router is affected, ensure that you are using firmware version 1.0.15 and verify if the MAC address handling is vulnerable.
Is TP-Link AC1750 version 'a7' affected by CVE-2021-27246?
No, TP-Link AC1750 version 'a7' is not vulnerable to CVE-2021-27246.