IBM AIX 3.2.5/4.1/4.2 SYN Packet denial of service

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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A vulnerability classified as problematic has been found in IBM AIX 3.2.5/4.1/4.2 (Operating System). This affects some unknown processing of the component SYN Packet Handler. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. This is going to have an impact on availability.

The weakness was released 09/19/1996 as 00136 as confirmed advisory (Website). The advisory is shared at This vulnerability is uniquely identified as CVE-1999-0116. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are unknown but a public exploit is available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

It is declared as proof-of-concept. The exploit is shared for download at

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (135) and Vulnerability Center (SBV-661). Further details are available at





CPE 2.3infoedit

CPE 2.2infoedit


VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
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Class: Denial of service
CWE: CWE-404
ATT&CK: T1499

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

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Current Price Estimation: 🔍


Exploit-DB: 🔍

Threat Intelligenceinfoedit

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Recommended: Upgrade
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09/19/1996 🔍
09/19/1996 +0 days 🔍
09/19/1996 +0 days 🔍
01/19/2003 +2313 days 🔍
04/09/2004 +445 days 🔍
06/17/2014 +3721 days 🔍
08/11/2017 +1151 days 🔍
05/08/2019 +635 days 🔍



Advisory: 00136
Status: Confirmed

CVE: CVE-1999-0116 (🔍)
X-Force: 135
Vulnerability Center: 661 - SYN flood - DOS with SYN flooding, Medium
OSVDB: 10182 - TCP/IP SYN Packets Saturation DoS

scip Labs:
Misc.: 🔍


Created: 06/17/2014 05:28 PM
Updated: 05/08/2019 07:06 AM
Changes: (5) exploit_availability exploit_publicity exploit_url source_osvdb_create source_exploitdb
Complete: 🔍


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