CVE-1999-0454 — HIGH severity vulnerability (A remote attacker can sometimes identify the operating syste)
A remote attacker can sometimes identify the operating system of a host based on how it reacts to some IP or ICMP packets, using a tool such as nmap or queso.
| CVE ID | CVE-1999-0454 |
|---|---|
| Severity | HIGH |
| CVSS score | 10.0 |
| CVSS vector | AV:N/AC:L/Au:N/C:C/I:C/A:C |
| CWE | NVD-CWE-Other |
| Status | Modified |
| Published | 1999-01-01 |
| Last modified | 2026-04-16 |
| Description | A remote attacker can sometimes identify the operating system of a host based on how it reacts to some IP or ICMP packets, using a tool such as nmap or queso. |
| Source | NIST National Vulnerability Database |
🔍 Search all vulnerabilities →
$999/mo
Try CVECheck →