A vulnerability was found in VPNBrowser VPN Browser+ 1.1.0.0 and classified as critical . This affects the function Search . Such manipulation leads to missing authentication. This vulnerability is uniquely identified as CVE-2018-25241 . The attack can be launched remotely. Moreover, an exploit is present.
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✦ AI Summary· Claude Sonnet
VDB-355353 · CVE-2018-25241 · EXPLOIT 46198
VPNBROWSER VPN BROWSER+ 1.1.0.0 SEARCH MISSING AUTHENTICATION
HISTORYDIFFRELATEJSONXMLCTI
CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score
6.1 $0-$5k 0.55+
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 vulnerability database at Exploit-DB (46198).
Productinfo
Type
Network Encryption Software
Vendor
VPNBrowser
Name
VPN Browser+
Version
1.1.0.0
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
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: 🔍
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: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
0-Day Unlock Unlock Unlock Unlock
Today Unlock Unlock Unlock Unlock
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
scip Labs: https://www.scip.ch/en/?labs.20161013
Entryinfo
Created: 04/04/2026 19:44
Changes: 04/04/2026 19:44 (81)
Complete: 🔍
Cache ID: 99:8CC:101
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