// For flags

CVE-1999-0116

TCP SYN - 'bang.c' Denial of Service

Severity Score

7.5
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 1996-09-19 CVE Published
  • 1999-06-07 CVE Reserved
  • 2002-09-17 First Exploit
  • 2024-08-01 CVE Updated
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Ibm
Search vendor "Ibm"
 Aix
Search vendor "Ibm" for product "Aix"
 3.2.5
Search vendor "Ibm" for product "Aix" and version "3.2.5"
-
Affected
Ibm
Search vendor "Ibm"
 Aix
Search vendor "Ibm" for product "Aix"
 4.1
Search vendor "Ibm" for product "Aix" and version "4.1"
-
Affected
Ibm
Search vendor "Ibm"
 Aix
Search vendor "Ibm" for product "Aix"
 4.2
Search vendor "Ibm" for product "Aix" and version "4.2"
-
Affected
Ibm
Search vendor "Ibm"
 Sng
Search vendor "Ibm" for product "Sng"
 2.1
Search vendor "Ibm" for product "Sng" and version "2.1"
-
Affected
Ibm
Search vendor "Ibm"
 Sng
Search vendor "Ibm" for product "Sng"
 2.2
Search vendor "Ibm" for product "Sng" and version "2.2"
-
Affected