High severity8.6NVD Advisory· Published Jan 29, 2021· Updated Jun 17, 2026
CVE-2021-25909
CVE-2021-25909
Description
ZIV Automation 4CCT-EA6-334126BF firmware version 3.23.80.27.36371, allows an unauthenticated, remote attacker to cause a denial of service condition on the device. An attacker could exploit this vulnerability by sending specific packets to the port 7919.
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Affected products
23.23.80.27.36371+ 1 more
- (no CPE)range: 3.23.80.27.36371
- (no CPE)range: 3.23.80.27.36371
Patches
Vulnerability mechanics
References
1- www.incibe-cert.es/en/early-warning/ics-advisories/4cct-vulnerable-denial-service-attacknvdThird Party Advisory
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