CVE-2000-0543

VendorpgpProductcertificate serverDiscoveredJun 14, 2000UpdatedApr 16, 2026

The command port for PGP Certificate Server 2.5.0 and 2.5.1 allows remote attackers to cause a denial of service if their hostname does not have a reverse DNS entry and they connect to port 4000.

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CVSS v3.1

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EPSS

1.09%

probability of exploitation in 30 days

CISA KEV

Not listed

no confirmed exploitation reported

News coverage

sources referencing this CVE

Related IOCs

seen in the same coverage

Connections

1 relationships

certificate server

source

Timeline

disclosure → media coverage

Jun 14, 2000

Disclosure — published as a CVE record. · last revised by NVD Apr 16, 2026