THREATPORT/VULNERABILITY/CVE-2004-2652
HIGH SEVERITY

CVE-2004-2652

Snort vulnerability

CVSS
7.8
EPSS
11.2%
EPSS pct
95th
Exploited
No known
The DecodeTCPOptions function in decode.c in Snort before 2.3.0, when printing TCP/IP options using FAST output or verbose mode, allows remote attackers to cause a denial of service (crash) via packets with invalid TCP/IP options, which trigger a null dereference.
Affected vendor
Sourcefire
Affected product
Snort
CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:C
Published
2004-12-31

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 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-2004-2652

  • Confirm whether Sourcefire Snort is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2004-2652.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2004-2652

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2004-2652 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

Run a free external exposure scan

Are you exposed to CVE-2004-2652?

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