CVE-2021-45756: Buffer Overflow

Published Mar 23, 2022
·
Updated

Asus RT-AC68U <3.0.0.4.385.20633 and RT-AC5300 <3.0.0.4.384.82072 are affected by a buffer overflow in blockingrequest.cgi.

Affected Software

8 affected components
ASUS RT-AC68U Firmware<3.0.0.4.385.20633
ASUS RT-AC68U
ASUS Rt-ac5300 Firmware<3.0.0.4.384.82072
ASUS RT-AC5300
All of the following
ASUS RT-AC68U Firmware<3.0.0.4.385.20633
ASUS RT-AC68U
All of the following
ASUS Rt-ac5300 Firmware<3.0.0.4.384.82072
ASUS RT-AC5300

Event History

Mar 23, 2022
CVE Published
via MITRE·10:49 AM
Data Sourced
via MITRE·10:49 AM
Description
Data Sourced
via NVD·11:15 AM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is CVE-2021-45756?

CVE-2021-45756 is a vulnerability affecting Asus RT-AC68U and RT-AC5300 routers, which allows for a buffer overflow in blocking_request.cgi.

2

How severe is CVE-2021-45756?

CVE-2021-45756 has a severity rating of 9.8, which is considered critical.

3

Which devices are affected by CVE-2021-45756?

Asus RT-AC68U firmware versions up to 3.0.0.4.385.20633 and Asus RT-AC5300 firmware versions up to 3.0.0.4.384.82072 are affected by CVE-2021-45756.

4

How can I fix CVE-2021-45756?

To fix CVE-2021-45756, it is recommended to update the firmware of the affected devices to a version beyond the vulnerable ones mentioned.

5

Where can I find more information about CVE-2021-45756?

You can find more information about CVE-2021-45756 on the ASUS website, RT-AC68U website, and the GitHub repository related to this vulnerability.

Contact

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