CVE-2000-0053

Microsoft Commercial Internet System (MCIS) IMAP server allows remote attackers to cause a denial of service via a malformed IMAP request.

Published: 2000-01-04 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2000-0053 is rated Moderate Risk (64.5/100): CVSS High severity, with high exploitation likelihood (EPSS 14.20%, 94th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +1.72% over the last day, indicating growing attacker interest. High exploitation likelihood—assess exposure and prioritize 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-2000-0053

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 2025-03-30 12.48% 14.20% +1.72%
2 2025-03-29 14.20% 12.48% -1.72%
3 2025-03-17 — 14.20% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2000-0053

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/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:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2000-0053

Affected software / configurations for CVE-2000-0053

Vendor Product Version Raw CPE
microsoft commercial_internet_system 2.0 cpe:2.3:a:microsoft:commercial_internet_system:2.0:*:*:*:*:*:*:*
microsoft commercial_internet_system 2.5 cpe:2.3:a:microsoft:commercial_internet_system:2.5:*:*:*:*:*:*:*

References for CVE-2000-0053

cvelogic Threat Intelligence