CVE-2018-25239Public exploit

Application crash via oversized search input

Published Apr 4, 2026 · Updated Apr 4, 2026

Denial of service in OneSearch Smart VPN 1.1.3.0 allows local users to crash the application through its search interface. The top-right search handler accepts a pasted 2,100-character buffer and lets the resulting exception escape instead of handling it. Exploitation requires local GUI access and submission with Enter; the demonstrated consequence is termination of the Smart VPN application.

CVSS severity6.9
Medium
EPSS probability0.19%
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 OneSearch Smart VPN 1.1.3.0 allows local users to crash the application through its search interface. The top-right search handler accepts a pasted 2,100-character buffer and lets the resulting exception escape instead of handling it. Exploitation requires local GUI access and submission with Enter; the demonstrated consequence is termination of the Smart VPN application.

The record

CVE
CVE-2018-25239
Published
Apr 4, 2026
Updated
Apr 4, 2026
Vendor
OneSearch
Product
Smart VPN
Classifications
CWE-470, CAPEC-138, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.1.3.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

OneSearch · Smart VPNversion=1.1.3.0

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-470Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection')
CAPEC-138Reflection Injection
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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