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Fencer Vulns
high 7.8

CVE-2005-4348 json

fetchmail before 6.3.1 and before 6.2.5.5, when configured for multidrop mode, allows remote attackers to cause a denial of service (applic…

published 2005-12-21 20 y ago modified 2026-06-16 4 mo ago also EUVD-2005-4343

cvss
7.8
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.6%
EPSS 3.6% chance of exploitation in 30 days, percentile 89%
public exploits
0
none known

Summary

fetchmail 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 crash) by sending messages without headers from upstream mail servers.

Patch / fix

  • fetchmail fetchmail 6.2.5.5, 6.3.1
  • fetchmail Debian 14, Debian 13, Debian 12 6.3.1-1

debian advisories DEBIAN-CVE-2005-4348

  • fetchmail RHEL 2.1 5.9.0-21.7.3.el2.1.4
  • fetchmail RHEL 3 6.2.0-3.el3.3
  • fetchmail RHEL 4 6.2.5-6.el4.5
  • fetchmailconf RHEL 2.1 5.9.0-21.7.3.el2.1.4

red hat advisories RHSA-2007:0018

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2005-4348 updated

security flaw

  • Red Hat Desktop version 3 fetchmail 6.2.0-3.el3.3 Red Hat Enterprise Linux AS (Advanced Server) version 2.1 fetchmail 5.9.0-21.7.3.el2.1.4, fetchmailconf 5.9.0-21.7.3.el2.1.4 Red Hat Enterprise Linux AS version 3 fetchmail 6.2.0-3.el3.3 Red Hat Enterprise Linux AS version 4 fetchmail 6.2.5-6.el4.5 Red Hat Enterprise Linux Desktop version 4 fetchmail 6.2.5-6.el4.5 Red Hat Enterprise Linux ES version 2.1 fetchmail 5.9.0-21.7.3.el2.1.4, fetchmailconf 5.9.0-21.7.3.el2.1.4
    +6 more products
    Red Hat Enterprise Linux ES version 3 fetchmail 6.2.0-3.el3.3 Red Hat Enterprise Linux ES version 4 fetchmail 6.2.5-6.el4.5 Red Hat Enterprise Linux WS version 2.1 fetchmail 5.9.0-21.7.3.el2.1.4, fetchmailconf 5.9.0-21.7.3.el2.1.4 Red Hat Enterprise Linux WS version 3 fetchmail 6.2.0-3.el3.3 Red Hat Enterprise Linux WS version 4 fetchmail 6.2.5-6.el4.5 Red Hat Linux Advanced Workstation 2.1 fetchmail 5.9.0-21.7.3.el2.1.4, fetchmailconf 5.9.0-21.7.3.el2.1.4
    fixed: vendor fix RHSA-2007:0018

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

3.64% chance of exploitation in the next 30 days, higher than 89% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 7.8 AV:N/AC:L/Au:N/C:N/I:N/A:C

Classification

Weakness
  • CWE-399 Resource Management Errors

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.