High severity8.8NVD Advisory· Published Nov 5, 2021· Updated Jun 17, 2026
CVE-2021-43406
CVE-2021-43406
Description
An issue was discovered in FusionPBX before 4.5.30. The fax_post_size may have risky characters (it is not constrained to preset values).
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2- FusionPBX/FusionPBXdescription
Patches
Vulnerability mechanics
References
1- github.com/fusionpbx/fusionpbx/commit/0377b2152c0e59c8f35297f9a9b6ee335a62d963nvdPatchThird Party Advisory
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