CVE-2000-0564

The guestbook CGI program in ICQ Web Front service for ICQ 2000a, 99b, and others allows remote attackers to cause a denial of service via a URL with a long name parameter.

Published: 2000-05-29 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2000-0564 is rated Moderate Risk (44.1/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.31%). Review affected assets and schedule remediation.

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

Exploit prediction scoring system (EPSS) score for CVE-2000-0564

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 2026-06-15 0.58% 1.31% +0.73%
2 2025-03-30 0.79% 0.58% -0.22%
3 2025-03-29 — 0.79% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2000-0564

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-2000-0564

Affected software / configurations for CVE-2000-0564

Vendor Product Version Raw CPE
mirabilis icq 0.99b_1.1.1.1 cpe:2.3:a:mirabilis:icq:0.99b_1.1.1.1:*:*:*:*:*:*:*
mirabilis icq 0.99b_v.3.19 cpe:2.3:a:mirabilis:icq:0.99b_v.3.19:*:*:*:*:*:*:*
mirabilis icq 98.0a cpe:2.3:a:mirabilis:icq:98.0a:*:*:*:*:*:*:*
mirabilis icq 99a_2.15build1701 cpe:2.3:a:mirabilis:icq:99a_2.15build1701:*:*:*:*:*:*:*
mirabilis icq 99a_2.21build1800 cpe:2.3:a:mirabilis:icq:99a_2.21build1800:*:*:*:*:*:*:*
mirabilis icq 2000.0a cpe:2.3:a:mirabilis:icq:2000.0a:*:*:*:*:*:*:*

References for CVE-2000-0564

cvelogic Threat Intelligence