VPNBrowser VPN Browser+ 1.1.0.0 search missing authentication

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.1$0-$5k0.00

Summaryinfo

A vulnerability was found in VPNBrowser VPN Browser+ 1.1.0.0. It has been classified as critical. This impacts the function Search. Performing a manipulation results in missing authentication. This vulnerability was named CVE-2018-25241. The attack may be initiated remotely. In addition, an exploit is available.

Detailsinfo

A vulnerability was found in VPNBrowser VPN Browser+ 1.1.0.0. It has been classified as critical. This affects the function search. The manipulation with an unknown input leads to a missing authentication vulnerability. CWE is classifying the issue as CWE-306. The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources. This is going to have an impact on availability. The summary by CVE is:

VPN Browser+ 1.1.0.0 contains a denial of service vulnerability that allows unauthenticated attackers to crash the application by submitting oversized input through the search functionality. Attackers can paste a large buffer of characters into the search bar to trigger an unhandled exception that terminates the application.

The weakness was presented by 0xB9 as 46198. The advisory is shared at exploit-db.com. This vulnerability is uniquely identified as CVE-2018-25241 since 04/04/2026. 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 and a public exploit are known.

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

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 (46198) and EUVD (EUVD-2018-21736). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

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: 6.4
VulDB Meta Temp Score: 6.1

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector (VulnCheck): 🔒

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Missing authentication
CWE: CWE-306 / CWE-287
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

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

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Exploit-DB: 🔒

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

04/04/2026 Advisory disclosed
04/04/2026 +0 days CVE reserved
04/04/2026 +0 days VulDB entry created
04/04/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: 46198
Researcher: 0xB9
Status: Not defined

CVE: CVE-2018-25241 (🔒)
GCVE (CVE): GCVE-0-2018-25241
GCVE (VulDB): GCVE-100-355353
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 04/04/2026 19:44
Updated: 04/04/2026 22:24
Changes: 04/04/2026 19:44 (81), 04/04/2026 22:24 (1)
Complete: 🔍
Cache ID: 216:CEB:103

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

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