Input Validation Flaw in FusionPBX Affects Communication Systems
CVE-2021-43406

8.8HIGH

Key Information:

Vendor

Fusionpbx

Status
Fusionpbx
Vendor
CVE Published:
5 November 2021

What is CVE-2021-43406?

An input validation flaw was identified in FusionPBX versions prior to 4.5.30, where the fax_post_size parameter does not impose adequate constraints on user inputs. This vulnerability allows potentially harmful characters to be processed, which could lead to various security risks and exploits, particularly related to the handling of fax transmissions.

References

https://github.com/fusionpbx/fusionpbx/commit/0377b2152c0...
x_refsource_MISC

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.