CVE-2021-43722

Public Exploit

Description

D-Link DIR-645 1.03 A1 is vulnerable to Buffer Overflow. The hnap_main function in the cgibin handler uses sprintf to format the soapaction header onto the stack and has no limit on the size.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.36% Top 25%
Vendor Advisory dlink.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.dlink.com/en/security-bulletin/ vendor advisory
https://github.com/luqiut/iot/blob/main/DIR-645%20Stack%20overflow.md third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2021-43722?
CVE-2021-43722 has been scored as a critical severity vulnerability.
How to fix CVE-2021-43722?
To fix CVE-2021-43722, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-43722 being actively exploited in the wild?
It is possible that CVE-2021-43722 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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