How severe is CVE-2002-0515?

CVE-2002-0515 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2002-0515 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2002-0515?

CVE-2002-0515 affects Phildev Ipfilter. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2002-0515?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2002-0515 published?

CVE-2002-0515 was published on 2002-08-12 and last updated on 2026-06-16.

CVE-2002-0515

CVE-2002-0515 is a medium-severity vulnerability in Phildev Ipfilter with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-203.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 2% (80th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-203
Affected product: Phildev Ipfilter
Published: 2002-08-12
Last 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.

Frequently asked questions

What is CVE-2002-0515?: 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.
How severe is CVE-2002-0515?: CVE-2002-0515 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2002-0515 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2002-0515?: CVE-2002-0515 affects Phildev Ipfilter. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2002-0515?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2002-0515 published?: CVE-2002-0515 was published on 2002-08-12 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:phildev:ipfilter:*:*:*:*:*:*:*:*

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