CVE-2003-0209

Smoothwall vulnerability

CVSS

10.0

EPSS

38.6%

EPSS pct

98th

Exploited

No known

Integer overflow in the TCP stream reassembly module (stream4) for Snort 2.0 and earlier allows remote attackers to execute arbitrary code via large sequence numbers in packets, which enable a heap-based buffer overflow.

Affected vendor

Smoothwall

Affected product

Smoothwall

CVSS vector

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

Published

2003-05-05

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 confidentiality, complete impact to integrity, complete impact to availability.

Its EPSS score of 38.6% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 98% of all scored CVEs.

Check your external exposure to CVE-2003-0209

Confirm whether Smoothwall Smoothwall is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2003-0209.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2003-0209

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2003-0209 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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