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CVE-2006-5974

21
FAUCET Score

CVE-2006-5974 describes a denial-of-service vulnerability affecting fetchmail versions 6.3.5 and 6.3.6 prior to 6.3.6-rc4. This flaw allows remote attackers to crash the application via a NULL pointer dereference when refusing a message delivered through the mda option. With a CVSS score of 7.8, this vulnerability is considered high severity due to its network-based attack vector, low complexity, and complete impact on availability. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
6.3.5CPE matchmatch criteria
cpe:2.3:a:fetchmail:fetchmail:6.3.5:*:*:*:*:*:*:*
6.3.6CPE matchmatch criteria
cpe:2.3:a:fetchmail:fetchmail:6.3.6:rc1:*:*:*:*:*:*
6.3.6CPE matchmatch criteria
cpe:2.3:a:fetchmail:fetchmail:6.3.6:rc2:*:*:*:*:*:*
6.3.6CPE matchmatch criteria
cpe:2.3:a:fetchmail:fetchmail:6.3.6:rc3:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.8HIGH

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.79%
Probability of exploitation in next 30 days
EPSS Percentile
88.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0379 is in the 80th percentile among its peer group of 51,553 CVEs.

Social Chatter

No social media mentions found for this CVE.

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-2006-5974

CVE-2006-5974

References

fedoranews.org / cms/node/2429
fetchmail.berlios.de / fetchmail-SA-2006-03.txt
osvdb.org / 31836
secunia.com / advisories/23631
Vendor Advisory
secunia.com / advisories/23804
Vendor Advisory
secunia.com / advisories/23838
Vendor Advisory
secunia.com / advisories/23923
Vendor Advisory
secunia.com / advisories/24151
Vendor Advisory
security.gentoo.org / glsa/glsa-200701-13.xml
securitytracker.com / id
slackware.com / security/viewer.php
novell.com / linux/security/advisories/2007_4_sr.html
openpkg.com / security/advisories/OpenPKG-SA-2007.004.html
securityfocus.com / archive/1/456114/100/0/threaded
securityfocus.com / bid/21902
Patch
trustix.org / errata/2007/0007
vupen.com / english/advisories/2007/0087
vupen.com / english/advisories/2007/0088