---
cve: "CVE-1999-0453"
severity: "LOW"
cvss: 3.1
epss: "1.4%"
vendor: "n/a"
kev: false
exploited: false
published: "1999-01-01 05:00:00"
tags: [cve, security, low]
source: tsecurity.de CVE-Dossier
exported: "2026-09-20T18:30:26+02:00"
---

# CVE-1999-0453

> 3.1 LOW

## Beschreibung

An attacker can identify a CISCO device by sending a SYN packet to port 1999, which is for the Cisco Discovery Protocol (CDP).

## Referenzen

- <https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0453>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-1999-0453) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_