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Vulnerability record · CVE-2001-0819 · published 6 December 2001

CVE-2001-0819: Fetchmail memory buffer overflow vulnerability

Fetchmail · Fetchmail

A buffer overflow in Linux fetchmail before 5.8.6 allows remote attackers to execute arbitrary code via a large 'To:' field in an email header.

7.5 CVSS 2.0 High EPSS 6.4% · top 6.6% CWE-119 · Memory buffer overflow
7.5CVSS 2.0 base score
6.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
22References
16 Jun 2026Last modified by NVD

Description

A buffer overflow in Linux fetchmail before 5.8.6 allows remote attackers to execute arbitrary code via a large 'To:' field in an email header.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-01:43.fetchmail.asc
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000403
http://download.immunix.org/ImmunixOS/7.0/updates/IMNX-2001-70-025-01
http://www.caldera.com/support/security/advisories/CSSA-2001-022.1.txt
http://www.debian.org/security/2001/dsa-060 PatchVendor Advisory
http://www.linux-mandrake.com/en/security/2001/MDKSA-2001-063.php3?dis=7.1
http://www.linuxsecurity.com/advisories/other_advisory-1451.html PatchVendor Advisory
http://www.novell.com/linux/security/advisories/2001_026_fetchmail_txt.html
http://www.redhat.com/support/errata/RHSA-2001-103.html
http://www.securityfocus.com/bid/2877 PatchVendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/6704
ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-01:43.fetchmail.asc
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000403
http://download.immunix.org/ImmunixOS/7.0/updates/IMNX-2001-70-025-01
http://www.caldera.com/support/security/advisories/CSSA-2001-022.1.txt
http://www.debian.org/security/2001/dsa-060 PatchVendor Advisory
http://www.linux-mandrake.com/en/security/2001/MDKSA-2001-063.php3?dis=7.1
http://www.linuxsecurity.com/advisories/other_advisory-1451.html PatchVendor Advisory
http://www.novell.com/linux/security/advisories/2001_026_fetchmail_txt.html
http://www.redhat.com/support/errata/RHSA-2001-103.html
http://www.securityfocus.com/bid/2877 PatchVendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/6704

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2001-1009Fetchmail permissions and access controls vulnerabilityFetchmail (aka fetchmail-ssl) before 5.8.17 allows a remote malicious (1) IMAP server or (2) POP/POP3 server to overwrite arbitrary memory and possib…EPSS 6.5%10.0CVE-2001-0101Fetchmail vulnerabilityVulnerability in fetchmail 5.5.0-2 and earlier in the AUTHENTICATE GSSAPI command.EPSS 1.8%7.8CVE-2006-5867Fetchmail improper input validation vulnerabilityfetchmail before 6.3.6-rc4 does not properly enforce TLS and may transmit cleartext passwords over unsecured links if certain circumstances occur, wh…EPSS 4.4%7.8CVE-2006-5974Fetchmail improper input validation vulnerabilityfetchmail 6.3.5 and 6.3.6 before 6.3.6-rc4, when refusing a message delivered via the mda option, allows remote attackers to cause a denial of servic…EPSS 3.9%7.8CVE-2005-4348Fetchmail vulnerabilityfetchmail before 6.3.1 and before 6.2.5.5, when configured for multidrop mode, allows remote attackers to cause a denial of service (application cras…EPSS 3.6%7.5CVE-2021-36386Fetchmail vulnerabilityreport_vbuild in report.c in Fetchmail before 6.4.20 sometimes omits initialization of the vsnprintf va_list argument, which might allow mail servers…EPSS 2.6%7.5CVE-2002-1365Fetchmail memory buffer overflow vulnerabilityHeap-based buffer overflow in Fetchmail 6.1.3 and earlier does not account for the "@" character when determining buffer lengths for local addresses,…EPSS 5.0%7.5CVE-2002-1174Fetchmail memory buffer overflow vulnerabilityBuffer overflows in Fetchmail 6.0.0 and earlier allow remote attackers to cause a denial of service (crash) or execute arbitrary code via (1) long he…EPSS 4.7%

Source: NIST National Vulnerability Database (record CVE-2001-0819), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.