Vulnerability Details CVE-2021-27393
A vulnerability has been identified in Nucleus NET (All versions), Nucleus ReadyStart V3 (All versions < V2013.08), Nucleus Source Code (Versions including affected DNS modules). The DNS client does not properly randomize UDP port numbers of DNS requests. That could allow an attacker to poison the DNS cache or spoof DNS resolving.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 44.3%
CVSS Severity
CVSS v3 Score 5.3
CVSS v2 Score 5.0
References
Products affected by CVE-2021-27393
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cpe:2.3:a:siemens:nucleus_net:-
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cpe:2.3:a:siemens:nucleus_net:5.2
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cpe:2.3:a:siemens:nucleus_readystart_v3:*
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cpe:2.3:a:siemens:nucleus_source_code:-