What is the severity of CVE-2021-27706?

CVE-2021-27706 is classified as a high severity vulnerability due to its potential for remote code execution.

How do I fix CVE-2021-27706?

To mitigate CVE-2021-27706, it is recommended to update the firmware of Tenda G1 and G3 routers to a patched version that addresses this vulnerability.

Which devices are affected by CVE-2021-27706?

CVE-2021-27706 affects Tenda G1 and G3 routers specifically running firmware version V15.11.0.17(9502)_CN.

What type of vulnerability is CVE-2021-27706?

CVE-2021-27706 is a buffer overflow vulnerability that allows remote attackers to execute arbitrary code.

Are other firmware versions of Tenda routers affected by CVE-2021-27706?

No, only Tenda G1 and G3 routers running the specified firmware version are affected by CVE-2021-27706.

Vulnerability/
CVE-2021-27706

critical

9.8

CWE

120 119

14/4/2021

3/8/2024

CVE-2021-27706: Buffer Overflow

First published: Wed Apr 14 2021(Updated: )

Buffer Overflow in Tenda G1 and G3 routers with firmware version V15.11.0.17(9502)_CN allows remote attackers to execute arbitrary code via a crafted action/"IPMacBindIndex "request. This occurs because the "formIPMacBindDel" function directly passes the parameter "IPMacBindIndex" to strcpy without limit.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
Tendacn G1 Firmware	=v15.11.0.17\(9502\)_cn
Tendacn G1 Firmware
Tenda G3 Firmware	=v15.11.0.17\(9502\)_cn
Tenda G3 Firmware

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Reference Links

https://hackmd.io/BhzJ4H20TjqKUiBrDOIKaw

Frequently Asked Questions

What is the severity of CVE-2021-27706?
CVE-2021-27706 is classified as a high severity vulnerability due to its potential for remote code execution.
How do I fix CVE-2021-27706?
To mitigate CVE-2021-27706, it is recommended to update the firmware of Tenda G1 and G3 routers to a patched version that addresses this vulnerability.
Which devices are affected by CVE-2021-27706?
CVE-2021-27706 affects Tenda G1 and G3 routers specifically running firmware version V15.11.0.17(9502)_CN.
What type of vulnerability is CVE-2021-27706?
CVE-2021-27706 is a buffer overflow vulnerability that allows remote attackers to execute arbitrary code.
Are other firmware versions of Tenda routers affected by CVE-2021-27706?
No, only Tenda G1 and G3 routers running the specified firmware version are affected by CVE-2021-27706.

agent/type
agent/softwarecombine
collector/mitre-cve
source/MITRE
agent/weakness
agent/author
agent/last-modified-date
agent/references
agent/severity
agent/description
agent/first-publish-date
agent/event
agent/source
agent/tags
collector/nvd-index
agent/software-canonical-lookup-request
vendor/tenda
canonical/tendacn g1 firmware
version/tendacn g1 firmware/v15.11.0.17\(9502\)_cn
canonical/tenda g3 firmware
version/tenda g3 firmware/v15.11.0.17\(9502\)_cn

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