CVE-2000-0570

CVE-2000-0570 is a medium-severity vulnerability in Centrinity Firstclass Intranet Server with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

FirstClass Internet Services server 5.770, and other versions before 6.1, allows remote attackers to cause a denial of service by sending an email with a long To: mail header.

Frequently asked questions

What is CVE-2000-0570?
FirstClass Internet Services server 5.770, and other versions before 6.1, allows remote attackers to cause a denial of service by sending an email with a long To: mail header.
How severe is CVE-2000-0570?
CVE-2000-0570 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2000-0570 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2000-0570?
CVE-2000-0570 affects Centrinity Firstclass Intranet Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2000-0570?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2000-0570 published?
CVE-2000-0570 was published on 2000-06-27 and last updated on 2026-06-16.

References

Affected products (1)