CVE-2000-0570

Exp

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.

Published: 2000-06-27 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2000-0570 is rated High Exploit Risk (66.4/100): CVSS Medium severity, with high exploitation likelihood (EPSS 5.66%, 90th percentile). 3 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2000-0570

EDB-ID Source Kind Published Link
20052 exploit_db edb 2000-06-27 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2000-0570

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-01-28 5.79% 5.66% -0.13%
2 2025-03-30 7.56% 5.79% -1.77%
3 2025-03-29 — 7.56% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2000-0570

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2000-0570

Affected software / configurations for CVE-2000-0570

Vendor Product Version Raw CPE
centrinity firstclass_intranet_server 5.770 cpe:2.3:a:centrinity:firstclass_intranet_server:5.770:*:*:*:*:*:*:*

References for CVE-2000-0570

cvelogic Threat Intelligence