HIGH SEVERITY

CVE-2006-5974

Fetchmail vulnerability

CVSS
7.8
EPSS
3.8%
EPSS pct
89th
Exploited
No known
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 vendor
Fetchmail
Affected product
Fetchmail
CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:C
Weakness type (CWE)
  • CWE-20 — Improper Input Validation
Published
2006-12-31

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no authentication. Successful exploitation leads to complete impact to availability.

Its EPSS score of 3.8% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 89% of all scored CVEs.

Check your external exposure to CVE-2006-5974

  • Confirm whether Fetchmail Fetchmail is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2006-5974.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2006-5974

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