CVE-2022-43972

Public Exploit

Null pointer dereference in Linksys WRT54GL

Description

A null pointer dereference vulnerability exists in Linksys WRT54GL Wireless-G Broadband Router with firmware <= 4.30.18.006. A null pointer dereference in the soap_action function within the upnp binary can be triggered by an unauthenticated attacker via a malicious POST request invoking the AddPortMapping action.

References

Link	Tags
https://youtu.be/73-1lhvJPNg	third party advisory exploit
https://youtu.be/TeWAmZaKQ_w	third party advisory exploit
https://youtu.be/RfWVYCUBNZ0	third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2022-43972?: CVE-2022-43972 has been scored as a medium severity vulnerability.
How to fix CVE-2022-43972?: To fix CVE-2022-43972, 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-2022-43972 being actively exploited in the wild?: It is possible that CVE-2022-43972 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.
What software or system is affected by CVE-2022-43972?: CVE-2022-43972 affects Linksys WRT54GL Wireless-G Broadband Router.

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Description

Category

CWE-476 – NULL Pointer Dereference

References

Frequently Asked Questions