VDB-14067 · CVE-1999-0087 · XFDB 706

IBM AIX 4.1/4.2/4.3 Telnet denial of service

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.2	$0-$5k	0.00

Summaryinfo

A vulnerability marked as problematic has been reported in IBM AIX 4.1/4.2/4.3. This impacts an unknown function of the component Telnet. Performing a manipulation results in denial of service. This vulnerability is reported as CVE-1999-0087. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in IBM AIX 4.1/4.2/4.3 (Operating System). This affects an unknown code of the component Telnet. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. The summary by CVE is:

denial of service in aix telnet can freeze a system and prevent users from accessing the server.

The issue has been introduced in 08/12/1994. The weakness was disclosed 02/01/1998 (Website). It is possible to read the advisory at osvdb.org. This vulnerability is uniquely identified as CVE-1999-0087. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 1269 days. During that time the estimated underground price was around $5k-$25k.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (706), OSVDB (7992†) and Vulnerability Center (SBV-585†). The entry VDB-14063 is pretty similar. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Operating System

Vendor

Name

Version

License

commercial

Website

Vendor: https://www.ibm.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/12/1994 🔍
02/01/1998 +1269 days 🔍
02/01/1998 +0 days 🔍
02/01/1998 +0 days 🔍
12/30/2002 +1793 days 🔍
04/09/2004 +465 days 🔍
06/18/2014 +3722 days 🔍
04/17/2026 +4321 days 🔍

Sourcesinfo

Vendor: ibm.com

Advisory: osvdb.org⛔
Status: Confirmed

CVE: CVE-1999-0087 (🔍)
GCVE (CVE): GCVE-0-1999-0087
GCVE (VulDB): GCVE-100-14067
X-Force: 706
OSVDB: 7992 - IBM AIX telnet Login Remote DoS
Vulnerability Center: 585 - CVE Id, High

See also: 🔍

Entryinfo

Created: 06/18/2014 23:42
Updated: 04/17/2026 07:57
Changes: 06/18/2014 23:42 (59), 05/07/2019 16:11 (2), 04/17/2026 07:57 (18)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.