CVE-2002-0515
IPFilter 3.4.25 and earlier sets a different TTL when a port is being filtered than when it is...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2002-0515- CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:N - Weakness
- CWE-203
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2002-0515- Updated
- 2026-11-02
EUVDEUVD-2002-0511 No score
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.
- Record
EUVD-2002-0511- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-x74c-jx25-vjp6 No score
IPFilter 3.4.25 and earlier sets a different TTL when a port is being filtered than when it is...
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.
- Record
GHSA-x74c-jx25-vjp6- Weakness
- CWE-203
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2002-0515 is a medium vulnerability (CVSS 5.0) in Phildev Ipfilter, published June 11, 2002. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.20%, the 82nd percentile. No source names a fixed version.