CVE-2018-25243Public exploit

Application crash via oversized search input

Published Apr 4, 2026 · Updated Apr 4, 2026

Denial of service in FastTube 1.0.1.0 allows local users to crash the application by entering an oversized search string. FastTube's search operation does not safely handle a 1,900-character string pasted into the search bar and terminates the process when search runs. Local access to the Windows application is required, and the demonstrated consequence is an application crash without reported data disclosure or modification.

CVSS severity6.9
Medium
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in FastTube 1.0.1.0 allows local users to crash the application by entering an oversized search string. FastTube's search operation does not safely handle a 1,900-character string pasted into the search bar and terminates the process when search runs. Local access to the Windows application is required, and the demonstrated consequence is an application crash without reported data disclosure or modification.

The record

CVE
CVE-2018-25243
Published
Apr 4, 2026
Updated
Apr 4, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-763, T1499
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 4, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 4, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.2VulnCheckCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
6.9VulnCheckCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-763Release of Invalid Pointer or Reference
T1499Endpoint Denial of Service

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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