CVE Database · CVE-1999-0453
CVSS v3.1
N/A
EPSS
1.46%
Published
Jan 1, 1999
Modified
Apr 15, 2026
Public PoC / Exploit
All weaponized →No public PoC or exploit code indexed for this CVE.
Links to public security research (Exploit-DB, Nuclei, Trickest, GitHub) for defensive use only.
Description
An attacker can identify a CISCO device by sending a SYN packet to port 1999, which is for the Cisco Discovery Protocol (CDP).
Weaknesses (CWE)
Affected Products (1)
References (2)