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CVE-2002-0515

MEDIUM CVSS: 5.0 Published: 2002-08-12 Modified: 2026-06-16

Description

IPFilter 3.4.25 and earlier sets a different TTL when a port is being filtered than when it is not being filtered, which allows remote attackers to identify filtered ports by comparing TTLs.

Affected Platforms

Phildev Ipfilter

Weakness Type

CWE-203

References