nsauditor DNSS Domain Name Search Software 2.1.8 Registration Name/Key out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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4.6$0-$5k0.00

Summaryinfo

A vulnerability was found in nsauditor DNSS Domain Name Search Software 2.1.8 and classified as critical. Affected by this vulnerability is an unknown functionality of the component Registration Handler. The manipulation of the argument Name/Key results in out-of-bounds write. This vulnerability is known as CVE-2019-25591. Attacking locally is a requirement. Furthermore, an exploit is available.

Detailsinfo

A vulnerability classified as problematic has been found in nsauditor DNSS Domain Name Search Software 2.1.8. Affected is an unknown code of the component Registration Handler. The manipulation of the argument Name/Key with an unknown input leads to a out-of-bounds write vulnerability. CWE is classifying the issue as CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. This is going to have an impact on availability. CVE summarizes:

DNSS Domain Name Search Software 2.1.8 contains a buffer overflow vulnerability in the registration code input field that allows local attackers to crash the application by submitting an excessively long string. Attackers can trigger a denial of service by pasting a malicious registration code containing 300 repeated characters into the Name/Key field via the Register menu option.

The weakness was published by Victor Mondragón as 46831. The advisory is shared for download at exploit-db.com. This vulnerability is traded as CVE-2019-25591 since 03/22/2026. The exploitability is told to be easy. The attack needs to be approached locally. Technical details and a public exploit are known.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 303440 (Linux Distros Unpatched Vulnerability : CVE-2019-25591), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Exploit-DB (46831), CNNVD (CNNVD-202603-4151) and Tenable (303440). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 4.7
VulDB Meta Temp Score: 4.6

VulDB Base Score: 3.3
VulDB Temp Score: 3.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 6.2
CNA Vector (VulnCheck): 🔒

CVSSv2info

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

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

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

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 303440
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2019-25591

Exploit-DB: 🔒

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

03/22/2026 Advisory disclosed
03/22/2026 +0 days CVE reserved
03/22/2026 +0 days VulDB entry created
03/25/2026 +3 days VulDB entry last update

Sourcesinfo

Advisory: 46831
Researcher: Victor Mondragón
Status: Not defined

CVE: CVE-2019-25591 (🔒)
GCVE (CVE): GCVE-0-2019-25591
GCVE (VulDB): GCVE-100-352440
CNNVD: CNNVD-202603-4151 - Nsasoft Dnss Domain Name Search Software 缓冲区错误漏洞

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 03/22/2026 15:50
Updated: 03/25/2026 09:17
Changes: 03/22/2026 15:50 (81), 03/23/2026 17:29 (6), 03/25/2026 09:17 (2)
Complete: 🔍
Cache ID: 216::103

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

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