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Vulnerability record · CVE-2018-25241 · published 4 April 2026

CVE-2018-25241: Missing authentication for critical function vulnerability

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.

8.7 CVSS 4.0 High EPSS 0.36% · top 72.9% CWE-306 · Missing authentication for critical function Deferred
8.7CVSS 4.0 base score
0.36%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
21 Jul 2026Last modified by NVD

Description

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://www.exploit-db.com/exploits/46198
https://www.microsoft.com/store/productId/9NFFFFS5Z2C7
https://www.vulncheck.com/advisories/vpn-browser-denial-of-service

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Source: NIST National Vulnerability Database (record CVE-2018-25241), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.