CVE-2002-0515 json
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 atta…
published 2002-06-11 24 y ago modified 2026-06-16 4 mo ago also EUVD-2002-0511
- cvss
- 5.0
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.2%
- EPSS 2.2% chance of exploitation in 30 days, percentile 82%
- public exploits
- 0
- none known
Summary
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 prediction
2.20% chance of exploitation in the next 30 days, higher than 82% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- securityfocus.com http://www.securityfocus.com/bid/4403 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:P/I:N/A:N |
Classification
- Weakness
-
- CWE-203 Observable Discrepancy
References
-
securityfocus.com
/bid/4403
vdb-entry, broken-link, exploit, third-party-advisory, vendor-advisory
-
securityfocus.com
/archive/1/265188
mailing-list, broken-link, third-party-advisory, vdb-entry, vendor-advisory
-
iss.net
/security_center/static/8738.php
vdb-entry, broken-link, vendor-advisory
Sources
- CVE List CVE-2002-0515
- NVD CVE-2002-0515
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.