LiveActive security incident?Get immediate response
CVE Record

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 fi...

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.

UnknownCVSS not scoredNot KEV-listedUpdated
Discuss exposureBack to CVEs
Glexia's TakeAutomated analysis

Security readout for executives and security teams

This CVE describes a firewall fingerprinting weakness in IPFilter 3.4.25 and earlier. A remote observer could distinguish filtered ports from unfiltered behavior by comparing TTL values. The issue mainly supports reconnaissance rather than direct system compromise. Potentially exposed systems are those using IPFilter 3.4.25 or earlier, especially on Internet-facing firewall or gateway paths. The source bundle does not provide vendor, product CPE, platform, or deployment-specific exposure data. Treat this as a low-urgency legacy exposure unless IPFilter is still used on perimeter infrastructure. It can improve attacker reconnaissance, but the bundle does not show direct compromise impact or active exploitation. Mitigation focus: Inventory systems that may run IPFilter 3.4.25 or earlier.; Check vendor or platform guidance for corrected IPFilter versions.; Prioritize replacement or upgrade where IPFilter protects Internet-facing services..

Prepared

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cve · low confidence lookup

CVE-2002-0515 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
1Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.