CyberRota Analysis
This is a medium severity vulnerability with a CVSS score of 4.0. See the original NVD description below for full technical details.
CVE
CVE-2021-3448
Severity
MEDIUM
CVSS
4
EPSS
1.99%
Original NVD Description
A flaw was found in dnsmasq in versions before 2.85. When configured to use a specific server for a given network interface, dnsmasq uses a fixed port while forwarding queries. An attacker on the network, able to find the outgoing port used by dnsmasq, only needs to guess the random transmission ID to forge a reply and get it accepted by dnsmasq. This flaw makes a DNS Cache Poisoning attack much easier. The highest threat from this vulnerability is to data integrity.
Related CVEs
Other vulnerabilities affecting the same vendor(s)