VDB-14568 · CVE-1999-0420 · GCVE-0-1999-0420

NetBSD umapfs mount_umap 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.
8.0	$0-$5k	0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in NetBSD. This issue affects some unknown processing of the file mount_umap of the component umapfs. The manipulation results in privileges management. This vulnerability was named CVE-1999-0420. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in NetBSD (Operating System) (affected version unknown). It has been classified as critical. Affected is an unknown functionality of the file mount_umap of the component umapfs. The manipulation with an unknown input leads to a privileges management vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

umapfs allows local users to gain root privileges by changing their uid through a malicious mount_umap program.

The weakness was presented 03/17/1999. This vulnerability is traded as CVE-1999-0420. The exploitability is told to be easy. The attack needs to be approached locally. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1068.

Upgrading eliminates this vulnerability.

See VDB-14570 for similar entry. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Operating System

Name

NetBSD

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.4
VulDB Meta Temp Score: 8.0

VulDB Base Score: 8.4
VulDB Temp Score: 8.0
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: Partially
Local: Yes
Remote: No

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

03/17/1999 🔍
03/17/1999 +0 days 🔍
06/20/2014 +5574 days 🔍
04/19/2026 +4320 days 🔍

Sourcesinfo

Status: Confirmed

CVE: CVE-1999-0420 (🔍)
GCVE (CVE): GCVE-0-1999-0420
GCVE (VulDB): GCVE-100-14568
See also: 🔍

Entryinfo

Created: 06/20/2014 23:00
Updated: 04/19/2026 00:26
Changes: 06/20/2014 23:00 (35), 04/04/2019 12:07 (10), 04/19/2026 00:26 (18)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.