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CVE-2000-1027
Cisco Secure PIX Firewall 5.2(2) allows remote attackers to determine the real IP address of a target FTP server by flooding the server…
Medium5.0EPSS 3.5%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
Cisco Secure PIX Firewall 5.2(2) allows remote attackers to determine the real IP address of a target FTP server by flooding the server with PASV requests, which includes the real IP address in the response when passive mode is established.
Timeline
ID reserved
By mitre
- 59 days later
· 59 days later
Published
- 24 years later
· 24 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium5.0 | AV:N/AC:L/Au:N/C:P/I:N/A:N |
- EPSS (exploitation in 30 days)
- 3.5% · top 11% of all CVEs (8 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.
Weakness
- n/a
Affected products
n/a
- affected n/a
References (4)
- 1877 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 20001003 Cisco PIX Firewall allow external users to discover internal IPs (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 1623 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- cisco-pix-reveal-address(5646) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2000-1027)Record last updated .