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.

Vulnerability/
CVE-2021-27246

high

CWE

121

14/4/2021

3/8/2024

CVE-2021-27246: TP-Link AC1750 sync-server Stack-based Buffer Overflow Remote Code Execution Vulnerability

First published: Wed Apr 14 2021(Updated: )

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.

Credit: zdi-disclosures@trendmicro.com

Affected Software	Affected Version	How to fix
Tp-link Ac1750 Firmware	=1.0.15
TP-Link AC1750	=a7

Never miss a vulnerability like this again

Reference Links

https://www.zerodayinitiative.com/advisories/ZDI-21-215/

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.

collector/nvd-index
agent/type
collector/mitre-cve
source/MITRE
agent/weakness
agent/author
agent/title
agent/references
agent/severity
agent/last-modified-date
agent/first-publish-date
agent/description
agent/softwarecombine
agent/tags
agent/event
collector/zdi-advisory
source/ZDI
alias/ZDI-21-215
alias/ZDI-CAN-12306
alias/CVE-2021-27246
agent/software-canonical-lookup
vendor/tp-link
canonical/tp-link ac1750 firmware
version/tp-link ac1750 firmware/1.0.15
canonical/tp-link ac1750
version/tp-link ac1750/a7

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co

By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.