VDB-14345 · CVE-1999-0555 · GCVE-0-1999-0555

Unix Account privileges management

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.
9.2	$0-$5k	0.42

Summaryinfo

A vulnerability identified as critical has been detected in Unix. Affected by this issue is some unknown functionality of the component Account Handler. The manipulation leads to privileges management. This vulnerability is referenced as CVE-1999-0555. Furthermore, an exploit is available. It is advisable to modify the configuration settings.

Detailsinfo

A vulnerability was found in Unix (Operating System) (affected version not known). It has been rated as very critical. This issue affects some unknown functionality of the component Account Handler. The manipulation with an unknown input leads to a privileges management vulnerability. Using CWE to declare the problem leads to CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

A Unix account with a name other than "root" has UID 0, i.e. root privileges.

The weakness was published 01/01/1999. The identification of this vulnerability is CVE-1999-0555. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are unknown but a public exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/18/2026). MITRE ATT&CK project uses the attack technique T1068 for this issue.

It is declared as highly functional.

It is possible to mitigate the problem by applying the configuration setting .

Similar entries are available at VDB-14347 and VDB-14346. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Operating System

Name

Unix

License

commercial

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.2

VulDB Base Score: 9.8
VulDB Temp Score: 9.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Privileges management
CWE: CWE-269 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Highly functional

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: Config
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/01/1999 🔍
01/01/1999 +0 days 🔍
06/19/2014 +5648 days 🔍
04/18/2026 +4320 days 🔍

Sourcesinfo

Status: Not defined

CVE: CVE-1999-0555 (🔍)
GCVE (CVE): GCVE-0-1999-0555
GCVE (VulDB): GCVE-100-14345
scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 06/20/2014 00:50
Updated: 04/18/2026 00:20
Changes: 06/20/2014 00:50 (36), 04/04/2019 00:25 (10), 04/18/2026 00:20 (20)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.