CVE-1999-0116

Exp

Denial of service when an attacker sends many SYN packets to create multiple connections without ever sending an ACK to complete the connection, aka SYN flood.

Published: 1996-09-19 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-1999-0116 is rated High Exploit Risk (63.6/100): CVSS Medium severity, with high exploitation likelihood (EPSS 5.52%, 92th percentile). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-1999-0116

EDB-ID Source Kind Published Link
343 exploit_db edb 2002-09-17 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-1999-0116

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 9.04% 5.52% -3.52%
2 2025-03-30 8.44% 9.04% +0.59%
3 2025-03-29 — 8.44% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-1999-0116

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-1999-0116

OS Trackers for CVE-1999-0116

vendor priority summary link
alpine — CVE-1999-0116: no source package rows; 0 state rows across 0 repos (none); fixed 0, open 0. https://security.alpinelinux.org/vuln/CVE-1999-0116

Affected software / configurations for CVE-1999-0116

Vendor Product Version Raw CPE
ibm aix 3.2.5 cpe:2.3:o:ibm:aix:3.2.5:*:*:*:*:*:*:*
ibm aix 4.1 cpe:2.3:o:ibm:aix:4.1:*:*:*:*:*:*:*
ibm aix 4.2 cpe:2.3:o:ibm:aix:4.2:*:*:*:*:*:*:*
ibm sng 2.1 cpe:2.3:h:ibm:sng:2.1:*:*:*:*:*:*:*
ibm sng 2.2 cpe:2.3:h:ibm:sng:2.2:*:*:*:*:*:*:*

References for CVE-1999-0116

cvelogic Threat Intelligence