CVE-2021-43405

Public Exploit

Description

An issue was discovered in FusionPBX before 4.5.30. The fax_extension may have risky characters (it is not constrained to be numeric).

8.8

CVSS

Severity: High

CVSS 3.1 •

CVSS 2.0 •

EPSS 11.20% Top 10%

Third-Party Advisory packetstormsecurity.com Third-Party Advisory github.com

Affected: n/a n/a

References

Link	Tags
https://github.com/fusionpbx/fusionpbx/commit/2d2869c1a1e874c46a8c3c5475614ce769bbbd59	third party advisory patch
http://packetstormsecurity.com/files/164795/FusionPBX-4.5.29-Remote-Code-Execution.html	third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2021-43405?: CVE-2021-43405 has been scored as a high severity vulnerability.
How to fix CVE-2021-43405?: To fix CVE-2021-43405, 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-2021-43405 being actively exploited in the wild?: It is possible that CVE-2021-43405 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~11% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.