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CVE-2021-27393

🗓️ 27 Mar 2026 14:25:30Reported by redhat.comType 
redhatcve
 redhatcve
🔗 access.redhat.com👁 7 Views

Vulnerability in Nucleus NET allows DNS cache poisoning due to improper UDP port randomization.

Related
Refs
ReporterTitlePublishedViews
Family
CNNVD
Nucleus ReadyStart安全特征问题漏洞
13 Apr 202100:00
cnnvd
CNVD
Siemens Nucleus Products DNS Module Predicts UDP Port Number Vulnerabilities
13 Apr 202100:00
cnvd
CVE
CVE-2021-27393
22 Apr 202120:42
cve
Cvelist
CVE-2021-27393
22 Apr 202120:42
cvelist
EUVD
EUVD-2021-14148
7 Oct 202500:30
euvd
ICS
Siemens Nucleus DNS (Update A)
13 Apr 202100:00
ics
NVD
CVE-2021-27393
22 Apr 202121:15
nvd
Prion
Code injection
22 Apr 202121:15
prion

Data

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27 Mar 2026 14:25Current
6.8Medium risk
Vulners AI Score6.8
CVSS 25
CVSS 3.15.3
EPSS0.00218
7