CVE-1999-0016: cisco ios
Vulnerability summary
CVE-1999-0016 is a medium (CVSS 5.0) vulnerability in cisco ios. EPSS estimates a 95.67% chance of exploitation in the next 30 days, higher than 99.8% of scored vulnerabilities. 5 public exploits are recorded.
Timeline
- 29-09-1999PublishedVulnerability first disclosed.
- 17-03-2025Last modifiedVulnerability information updated.
Description
Land IP denial of service.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
95.67%
Chance of exploitation in the next 30 days
Percentile
100%
Versus all other CVEs
30-day change
-0.07 pp
From 95.74% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
5 foundFreeBSD 2.x / HP-UX 9/10/11 / Kernel 2.0.3 / Windows NT 4.0/Server 2003 / NetBSD 1 - 'land.c' loopback Denial of Service (1)
Maturity: poc
FreeBSD 2.x / HP-UX 9/10/11 / Kernel 2.0.3 / Windows NT 4.0/Server 2003 / NetBSD 1 - 'land.c' loopback Denial of Service (2)
Maturity: poc
FreeBSD 2.x / HP-UX 9/10/11 / Kernel 2.0.3 / Windows NT 4.0/Server 2003 / NetBSD 1 - 'land.c' loopback Denial of Service (4)
Maturity: poc
Show all 5 exploits
FreeBSD 2.x / HP-UX 9/10/11 / Kernel 2.0.3 / Windows NT 4.0/Server 2003 / NetBSD 1 - 'land.c' loopback Denial of Service (3)
Maturity: poc
FreeBSD 2.x / HP-UX 9/10/11 / Kernel 2.0.3 / Windows NT 4.0/Server 2003 / NetBSD 1 - 'land.c' loopback Denial of Service (5)
Maturity: poc
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Microsoft2 products
- windows_nt4.0
- winsock2.0
Cisco1 product
- ios7000
Gnu1 product
- inet5.01
Hp1 product
- hp-ux9.00 | 9.01 | 9.03 | 9.04 | 9.05 | 9.07 | 10.00 | 10.01 | 10.10 | 10.16 | 10.20 | 10.24 | 10.30 | 11.00
Netbsd1 product
- netbsdEOL1.0 | 1.1
Sun1 product
- sunos4.1.3u1 | 4.1.4
6 vendors · 7 products