CVSS 3.1 Score 7.5 of 10 (high)


Published Sep 6, 2023
Updated: Dec 21, 2023
CWE ID 167


CVE-2023-4809 is a vulnerability that affects multiple products, including Qtq-2v, Qtq-2o, Qtq-2_, and others. The vulnerability allows for the bypassing of pf firewall rules when processing packets with multiple IPv6 fragment headers. This means that fragmented packets may be interpreted as the real payload and forwarded or processed by the host. The potential danger to an organization includes the possibility of unauthorized access and compromise of systems. To remediate this vulnerability, organizations should apply the necessary patches or updates provided by the product vendors.

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