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CVE-2001-0101

26
FAUCET Score

CVE-2001-0101 describes a critical vulnerability in fetchmail versions 5.5.0-2 and earlier, specifically within the AUTHENTICATE GSSAPI command. This flaw carries a maximum CVSS score of 10.0, indicating a severe risk with network-based exploitation, low attack complexity, and complete compromise of confidentiality, integrity, and availability. Despite its age and high severity, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 5.5.0CPE matchmatch criteria
cpe:2.3:a:fetchmail:fetchmail:*:*:*:*:*:*:*:*
4.5.1CPE matchmatch criteria
cpe:2.3:a:fetchmail:fetchmail:4.5.1:*:*:*:*:*:*:*
4.5.2CPE matchmatch criteria
cpe:2.3:a:fetchmail:fetchmail:4.5.2:*:*:*:*:*:*:*
4.5.3CPE matchmatch criteria
cpe:2.3:a:fetchmail:fetchmail:4.5.3:*:*:*:*:*:*:*
4.5.4CPE matchmatch criteria
cpe:2.3:a:fetchmail:fetchmail:4.5.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

10.0HIGH

AV:N/AC:L/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.81%
Probability of exploitation in next 30 days
EPSS Percentile
76.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0181 is in the 59th percentile among its peer group of 51,466 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2001-0101

security flaw

Dec 27, 2000

References

exchange.xforce.ibmcloud.com / vulnerabilities/7455
redhat.com / support/errata/RHBA-2000-106.html
Vendor Advisory
turbolinux.com / pipermail/tl-security-announce/2000-December/000027.html
Patch