MEDIUM SEVERITY

CVE-2009-3111

Freeradius vulnerability

CVSS
5.0
EPSS
11.2%
EPSS pct
95th
Exploited
No known
The rad_decode function in FreeRADIUS before 1.1.8 allows remote attackers to cause a denial of service (radiusd crash) via zero-length Tunnel-Password attributes, as demonstrated by a certain module in VulnDisco Pack Professional 7.6 through 8.11. NOTE: this is a regression error related to CVE-2003-0967.
Affected vendor
Freeradius
Affected product
Freeradius
CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:P
Published
2009-09-09

Risk analysis

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

Its EPSS score of 11.2% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 95% of all scored CVEs.

Check your external exposure to CVE-2009-3111

  • Confirm whether Freeradius Freeradius is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2009-3111.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2009-3111

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