CVE-2001-0101

Vulnerability in fetchmail 5.5.0-2 and earlier in the AUTHENTICATE GSSAPI command.

Published: 2001-02-12 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2001-0101 is rated High Risk (67.9/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 1.81%). Core evidence: EPSS rose +1.38% over the last day, indicating growing attacker interest. Mandatory action: 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-2001-0101

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 0.44% 1.81% +1.38%
2 2025-03-30 0.83% 0.44% -0.39%
3 2025-03-29 0.83%

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2001-0101

CVSS metrics for this CVE.

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

Weakness enumeration for CVE-2001-0101

OS Trackers for CVE-2001-0101

vendor priority summary link
redhat https://access.redhat.com/security/cve/CVE-2001-0101

Affected software / configurations for CVE-2001-0101

Vendor Product Version Raw CPE
fetchmail fetchmail <= 5.5.0 cpe:2.3:a:fetchmail:fetchmail:*:*:*:*:*:*:*:*
fetchmail fetchmail 4.5.1 cpe:2.3:a:fetchmail:fetchmail:4.5.1:*:*:*:*:*:*:*
fetchmail fetchmail 4.5.2 cpe:2.3:a:fetchmail:fetchmail:4.5.2:*:*:*:*:*:*:*
fetchmail fetchmail 4.5.3 cpe:2.3:a:fetchmail:fetchmail:4.5.3:*:*:*:*:*:*:*
fetchmail fetchmail 4.5.4 cpe:2.3:a:fetchmail:fetchmail:4.5.4:*:*:*:*:*:*:*
fetchmail fetchmail 4.5.5 cpe:2.3:a:fetchmail:fetchmail:4.5.5:*:*:*:*:*:*:*
fetchmail fetchmail 4.5.6 cpe:2.3:a:fetchmail:fetchmail:4.5.6:*:*:*:*:*:*:*
fetchmail fetchmail 4.5.7 cpe:2.3:a:fetchmail:fetchmail:4.5.7:*:*:*:*:*:*:*
fetchmail fetchmail 4.5.8 cpe:2.3:a:fetchmail:fetchmail:4.5.8:*:*:*:*:*:*:*
fetchmail fetchmail 4.6.0 cpe:2.3:a:fetchmail:fetchmail:4.6.0:*:*:*:*:*:*:*
fetchmail fetchmail 4.6.1 cpe:2.3:a:fetchmail:fetchmail:4.6.1:*:*:*:*:*:*:*
fetchmail fetchmail 4.6.2 cpe:2.3:a:fetchmail:fetchmail:4.6.2:*:*:*:*:*:*:*
fetchmail fetchmail 4.6.3 cpe:2.3:a:fetchmail:fetchmail:4.6.3:*:*:*:*:*:*:*
fetchmail fetchmail 4.6.4 cpe:2.3:a:fetchmail:fetchmail:4.6.4:*:*:*:*:*:*:*
fetchmail fetchmail 4.6.5 cpe:2.3:a:fetchmail:fetchmail:4.6.5:*:*:*:*:*:*:*
fetchmail fetchmail 4.6.6 cpe:2.3:a:fetchmail:fetchmail:4.6.6:*:*:*:*:*:*:*
fetchmail fetchmail 4.6.7 cpe:2.3:a:fetchmail:fetchmail:4.6.7:*:*:*:*:*:*:*
fetchmail fetchmail 4.6.8 cpe:2.3:a:fetchmail:fetchmail:4.6.8:*:*:*:*:*:*:*
fetchmail fetchmail 4.6.9 cpe:2.3:a:fetchmail:fetchmail:4.6.9:*:*:*:*:*:*:*
fetchmail fetchmail 4.7.0 cpe:2.3:a:fetchmail:fetchmail:4.7.0:*:*:*:*:*:*:*
fetchmail fetchmail 4.7.1 cpe:2.3:a:fetchmail:fetchmail:4.7.1:*:*:*:*:*:*:*
fetchmail fetchmail 4.7.2 cpe:2.3:a:fetchmail:fetchmail:4.7.2:*:*:*:*:*:*:*
fetchmail fetchmail 4.7.3 cpe:2.3:a:fetchmail:fetchmail:4.7.3:*:*:*:*:*:*:*
fetchmail fetchmail 4.7.4 cpe:2.3:a:fetchmail:fetchmail:4.7.4:*:*:*:*:*:*:*
fetchmail fetchmail 4.7.5 cpe:2.3:a:fetchmail:fetchmail:4.7.5:*:*:*:*:*:*:*
fetchmail fetchmail 4.7.6 cpe:2.3:a:fetchmail:fetchmail:4.7.6:*:*:*:*:*:*:*
fetchmail fetchmail 4.7.7 cpe:2.3:a:fetchmail:fetchmail:4.7.7:*:*:*:*:*:*:*
fetchmail fetchmail 5.0.0 cpe:2.3:a:fetchmail:fetchmail:5.0.0:*:*:*:*:*:*:*
fetchmail fetchmail 5.0.1 cpe:2.3:a:fetchmail:fetchmail:5.0.1:*:*:*:*:*:*:*
fetchmail fetchmail 5.0.2 cpe:2.3:a:fetchmail:fetchmail:5.0.2:*:*:*:*:*:*:*
fetchmail fetchmail 5.0.3 cpe:2.3:a:fetchmail:fetchmail:5.0.3:*:*:*:*:*:*:*
fetchmail fetchmail 5.0.4 cpe:2.3:a:fetchmail:fetchmail:5.0.4:*:*:*:*:*:*:*
fetchmail fetchmail 5.0.5 cpe:2.3:a:fetchmail:fetchmail:5.0.5:*:*:*:*:*:*:*
fetchmail fetchmail 5.0.6 cpe:2.3:a:fetchmail:fetchmail:5.0.6:*:*:*:*:*:*:*
fetchmail fetchmail 5.0.7 cpe:2.3:a:fetchmail:fetchmail:5.0.7:*:*:*:*:*:*:*
fetchmail fetchmail 5.0.8 cpe:2.3:a:fetchmail:fetchmail:5.0.8:*:*:*:*:*:*:*
fetchmail fetchmail 5.1.0 cpe:2.3:a:fetchmail:fetchmail:5.1.0:*:*:*:*:*:*:*
fetchmail fetchmail 5.1.4 cpe:2.3:a:fetchmail:fetchmail:5.1.4:*:*:*:*:*:*:*
fetchmail fetchmail 5.2.0 cpe:2.3:a:fetchmail:fetchmail:5.2.0:*:*:*:*:*:*:*
fetchmail fetchmail 5.2.1 cpe:2.3:a:fetchmail:fetchmail:5.2.1:*:*:*:*:*:*:*
fetchmail fetchmail 5.2.3 cpe:2.3:a:fetchmail:fetchmail:5.2.3:*:*:*:*:*:*:*
fetchmail fetchmail 5.2.4 cpe:2.3:a:fetchmail:fetchmail:5.2.4:*:*:*:*:*:*:*
fetchmail fetchmail 5.2.7 cpe:2.3:a:fetchmail:fetchmail:5.2.7:*:*:*:*:*:*:*
fetchmail fetchmail 5.2.8 cpe:2.3:a:fetchmail:fetchmail:5.2.8:*:*:*:*:*:*:*
fetchmail fetchmail 5.3.0 cpe:2.3:a:fetchmail:fetchmail:5.3.0:*:*:*:*:*:*:*
fetchmail fetchmail 5.3.1 cpe:2.3:a:fetchmail:fetchmail:5.3.1:*:*:*:*:*:*:*
fetchmail fetchmail 5.3.3 cpe:2.3:a:fetchmail:fetchmail:5.3.3:*:*:*:*:*:*:*
fetchmail fetchmail 5.3.8 cpe:2.3:a:fetchmail:fetchmail:5.3.8:*:*:*:*:*:*:*
fetchmail fetchmail 5.4.0 cpe:2.3:a:fetchmail:fetchmail:5.4.0:*:*:*:*:*:*:*
fetchmail fetchmail 5.4.3 cpe:2.3:a:fetchmail:fetchmail:5.4.3:*:*:*:*:*:*:*
fetchmail fetchmail 5.4.4 cpe:2.3:a:fetchmail:fetchmail:5.4.4:*:*:*:*:*:*:*
fetchmail fetchmail 5.4.5 cpe:2.3:a:fetchmail:fetchmail:5.4.5:*:*:*:*:*:*:*

References for CVE-2001-0101

cvelogic Threat Intelligence