CVE-2018-25243

MEDIUM

FastTube 1.0.1.0 Denial of Service via Search

Title source: cna
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2018-25243. PoCs published by 0xB9.

AI-analyzed exploit summary This Python script generates a buffer overflow payload (1900 'A' characters) to trigger a Denial of Service (DoS) in FastTube 1.0.1.0 by pasting the payload into the search bar. The exploit is straightforward and relies on a simple buffer overflow to crash the application.

Description

FastTube 1.0.1.0 contains a denial of service vulnerability that allows local attackers to crash the application by submitting an excessively long string to the search functionality. Attackers can paste a buffer of 1900 characters into the search bar and trigger a crash when the search operation is executed.

Exploits (1)

exploitdb WORKING POC
by 0xB9 · pythondoswindows
https://www.exploit-db.com/exploits/46199

This Python script generates a buffer overflow payload (1900 'A' characters) to trigger a Denial of Service (DoS) in FastTube 1.0.1.0 by pasting the payload into the search bar. The exploit is straightforward and relies on a simple buffer overflow to crash the application.

Classification
Working Poc 95%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: FastTube 1.0.1.0
No auth needed
Prerequisites: FastTube 1.0.1.0 installed on Windows 10 · ability to paste text into the search bar
devstral-2 · analyzed Apr 07, 2026 Full analysis →

References (4)

Core 4
Core References
Exploit exploit
ExploitDB-46199
https://www.exploit-db.com/exploits/46199
Product product
Product Reference
https://www.microsoft.com/store/productId/9MXS9JVDP25V
Third Party Advisory
VulnCheck Advisory: Microsoft FastTube 1.0.1.0 Denial of Service via Search
https://www.vulncheck.com/advisories/microsoft-fasttube-denial-of-service-via-search
Third Party Advisory third-party-advisory
VulnCheck Advisory: FastTube 1.0.1.0 Denial of Service via Search
https://www.vulncheck.com/advisories/fasttube-denial-of-service-via-search

Scores

CVSS v3 6.2
EPSS 0.0012
EPSS Percentile 2.4%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-763
Status published
Products (1)
FastTube/FastTube 1.0.1.0
Published Apr 04, 2026
Tracked Since Apr 04, 2026