fetchmail 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 service (crash) via unknown vectors that trigger a NULL pointer dereference when calling the (1) ferror or (2) fflush functions
Published Jan 9, 2007
7.8
HIGHCVSS 2.0
EPSS 3.91%
Description
fetchmail 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 service (crash) via unknown vectors that trigger a NULL pointer dereference when calling the (1) ferror or (2) fflush functions.
Affected products
Remediation
Red Hat statement
Not vulnerable. This issue does not affect the versions of fetchmail distributed with Red Hat Enterprise Linux 2.1, 3, or 4.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:N/I:N/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (15 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 3.91% (0.03909) | 89.96th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.79% (0.03789) | 88.55th | v5 (v2026.06.15) |
| Feb 2, 2026 | 13.76% (0.13761) | 94.13th | v4 (v2025.03.14) |
| Mar 30, 2025 | 9.18% (0.09176) | 91.92th | v4 (v2025.03.14) |
| Mar 29, 2025 | 4.61% (0.04615) | 81.72th | v4 (v2025.03.14) |
| Mar 17, 2025 | 9.18% (0.09176) | 92.09th | v4 (v2025.03.14) |
| Dec 17, 2024 | 9.81% (0.09807) | 94.83th | v3 (v2023.03.01) |
| Dec 20, 2023 | 11.03% (0.11029) | 94.58th | v3 (v2023.03.01) |
| Oct 5, 2023 | 14.94% (0.14935) | 95.15th | v3 (v2023.03.01) |
| Aug 28, 2023 | 14.56% (0.14558) | 95.06th | v3 (v2023.03.01) |
| Jun 12, 2023 | 14.12% (0.14124) | 94.88th | v3 (v2023.03.01) |
| Mar 7, 2023 | 13.31% (0.13314) | 94.62th | v3 (v2023.03.01) |
| Mar 6, 2023 | 3.78% (0.03779) | 85.48th | v2 (v2022.01.01) |
| Apr 1, 2022 | 3.78% (0.03779) | 84.01th | v2 (v2022.01.01) |
| Feb 4, 2022 | 3.78% (0.03779) | 67.21th | v2 (v2022.01.01) |
References (21)
- http://fedoranews.org/cms/node/2429 vendor-advisoryx_refsource_FEDORA
- http://fetchmail.berlios.de/fetchmail-SA-2006-03.txt x_refsource_CONFIRM
- http://osvdb.org/31836 vdb-entryx_refsource_OSVDB
- http://secunia.com/advisories/23631 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/23804 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/23838 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/23923 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/24151 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://security.gentoo.org/glsa/glsa-200701-13.xml vendor-advisoryx_refsource_GENTOO
- http://securitytracker.com/id?1017479 vdb-entryx_refsource_SECTRACK
- http://slackware.com/security/viewer.php?l=slackware-security&y=2007&m=slackware-security.517995 vendor-advisoryx_refsource_SLACKWARE
- http://www.novell.com/linux/security/advisories/2007_4_sr.html vendor-advisoryx_refsource_SUSE
- http://www.openpkg.com/security/advisories/OpenPKG-SA-2007.004.html vendor-advisoryx_refsource_OPENPKG
- http://www.securityfocus.com/archive/1/456114/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/bid/21902 vdb-entryx_refsource_BIDPatch
- http://www.trustix.org/errata/2007/0007 vendor-advisoryx_refsource_TRUSTIX
- http://www.vupen.com/english/advisories/2007/0087 vdb-entryx_refsource_VUPEN
- http://www.vupen.com/english/advisories/2007/0088 vdb-entryx_refsource_VUPEN
- https://access.redhat.com/security/cve/CVE-2006-5974 Vendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2006-5974
- https://www.cve.org/CVERecord?id=CVE-2006-5974
Change history (0)
No recorded changes yet.