CVE-2001-1009

Exp

Fetchmail (aka fetchmail-ssl) before 5.8.17 allows a remote malicious (1) IMAP server or (2) POP/POP3 server to overwrite arbitrary memory and possibly gain privileges via a negative index number as part of a response to a LIST request.

Published: 2001-08-31 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2001-1009 is rated High Exploit Risk (82.5/100): CVSS Critical severity, with high exploitation likelihood (EPSS 6.52%, 93th percentile). 5 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-2001-1009

EDB-ID Source Kind Published Link
21064 exploit_db edb 2001-08-09 Exploit-DB ↗
21066 exploit_db edb 2001-08-09 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2001-1009

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 33.26% 6.52% -26.73%
2 2026-02-27 13.12% 33.26% +20.14%
3 2025-06-17 — 13.12% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2001-1009

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-2001-1009

OS Trackers for CVE-2001-1009

vendor priority summary link
redhat — — https://access.redhat.com/security/cve/CVE-2001-1009

Affected software / configurations for CVE-2001-1009

Vendor Product Version Raw CPE
fetchmail fetchmail <= 5.8.14 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:*:*:*:*:*:*:*
fetchmail fetchmail 5.5.0 cpe:2.3:a:fetchmail:fetchmail:5.5.0:*:*:*:*:*:*:*
fetchmail fetchmail 5.5.2 cpe:2.3:a:fetchmail:fetchmail:5.5.2:*:*:*:*:*:*:*
fetchmail fetchmail 5.5.3 cpe:2.3:a:fetchmail:fetchmail:5.5.3:*:*:*:*:*:*:*
fetchmail fetchmail 5.5.5 cpe:2.3:a:fetchmail:fetchmail:5.5.5:*:*:*:*:*:*:*
fetchmail fetchmail 5.5.6 cpe:2.3:a:fetchmail:fetchmail:5.5.6:*:*:*:*:*:*:*
fetchmail fetchmail 5.6.0 cpe:2.3:a:fetchmail:fetchmail:5.6.0:*:*:*:*:*:*:*
fetchmail fetchmail 5.7.0 cpe:2.3:a:fetchmail:fetchmail:5.7.0:*:*:*:*:*:*:*
fetchmail fetchmail 5.7.2 cpe:2.3:a:fetchmail:fetchmail:5.7.2:*:*:*:*:*:*:*
fetchmail fetchmail 5.7.4 cpe:2.3:a:fetchmail:fetchmail:5.7.4:*:*:*:*:*:*:*
fetchmail fetchmail 5.8 cpe:2.3:a:fetchmail:fetchmail:5.8:*:*:*:*:*:*:*
fetchmail fetchmail 5.8.1 cpe:2.3:a:fetchmail:fetchmail:5.8.1:*:*:*:*:*:*:*
fetchmail fetchmail 5.8.2 cpe:2.3:a:fetchmail:fetchmail:5.8.2:*:*:*:*:*:*:*
fetchmail fetchmail 5.8.3 cpe:2.3:a:fetchmail:fetchmail:5.8.3:*:*:*:*:*:*:*
fetchmail fetchmail 5.8.4 cpe:2.3:a:fetchmail:fetchmail:5.8.4:*:*:*:*:*:*:*
fetchmail fetchmail 5.8.5 cpe:2.3:a:fetchmail:fetchmail:5.8.5:*:*:*:*:*:*:*
fetchmail fetchmail 5.8.6 cpe:2.3:a:fetchmail:fetchmail:5.8.6:*:*:*:*:*:*:*
fetchmail fetchmail 5.8.11 cpe:2.3:a:fetchmail:fetchmail:5.8.11:*:*:*:*:*:*:*
fetchmail fetchmail 5.8.13 cpe:2.3:a:fetchmail:fetchmail:5.8.13:*:*:*:*:*:*:*
fetchmail fetchmail 5.9.0 cpe:2.3:a:fetchmail:fetchmail:5.9.0:*:*:*:*:*:*:*

References for CVE-2001-1009

cvelogic Threat Intelligence