CVE-2018-25315Public exploit

Local code execution via License Name overflow

Published Apr 29, 2026 · Updated Apr 29, 2026

Buffer overflow in Allok Soft Inc. Allok Video Joiner 4.6.1217 allows local users to execute arbitrary code via the License Name field. The registration handler copies an oversized License Name string into a fixed stack buffer, allowing the payload to overwrite SEH and redirect control to shellcode. The user must run the Windows desktop application and submit the crafted registration data; successful exploitation runs code in that user's context.

CVSS severity8.6
High
EPSS probability0.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in Allok Soft Inc. Allok Video Joiner 4.6.1217 allows local users to execute arbitrary code via the License Name field. The registration handler copies an oversized License Name string into a fixed stack buffer, allowing the payload to overwrite SEH and redirect control to shellcode. The user must run the Windows desktop application and submit the crafted registration data; successful exploitation runs code in that user's context.

The record

CVE
CVE-2018-25315
Published
Apr 29, 2026
Updated
Apr 29, 2026
Vendor
Allok Soft Inc.
Product
Allok Video Joiner
Classifications
CWE-120, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 29, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 29, 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=4.6.1217

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Allok Soft Inc. · Allok Video Joinerversion=4.6.1217

Published CVSS scores

8.4VulnCheckCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.6VulnCheckCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
T1203Exploitation for Client Execution

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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