CVE-2018-25302: Allok AVI to DVD Converter Buffer Overflow
The National Vulnerability Database (NVD) reports CVE-2018-25302, a high-severity buffer overflow vulnerability in Allok AVI to DVD SVCD VCD Converter 4.0.1217. This flaw, rated with a CVSS score of 7.8, stems from improper handling of the License Name field, which is susceptible to a structured exception handling (SEH) based overflow.
Attackers can exploit this by crafting a malicious string containing junk data, an SEH bypass, a handler address, and shellcode. When this crafted payload is pasted into the License Name field and the ‘Register’ button is clicked, it triggers the buffer overflow, leading to arbitrary code execution on the local system.
While this is a local attack vector requiring user interaction, the potential for arbitrary code execution makes it a significant risk. Defenders need to recognize that even older, seemingly innocuous desktop applications can harbor critical flaws that provide an entry point for lateral movement or privilege escalation once an initial foothold is established.
What This Means For You
- If your organization has legacy systems or user workstations running Allok AVI to DVD SVCD VCD Converter, you need to identify and remove or isolate them immediately. This local code execution vulnerability could be chained with other exploits to escalate privileges or move laterally after an initial compromise. Don't underestimate the risk of 'old' vulnerabilities in 'old' software.
Related ATT&CK Techniques
🛡️ Detection Rules
7 rules · 6 SIEM formats7 detection rules auto-generated for this incident, mapped to MITRE ATT&CK. Sigma YAML is free — export to any SIEM format via the Intel Bot.
Suspicious File Download via Email
title: Suspicious File Download via Email
id: scw-2026-04-29-1
status: experimental
level: medium
description: |
Detects execution of suspicious processes spawned from email clients, potentially triggered by a phishing attachment.
author: SCW Feed Engine (auto-generated)
date: 2026-04-29
references:
- https://shimiscyberworld.com/posts/nvd-CVE-2018-25302/
tags:
- attack.execution
- attack.t1204.002
logsource:
category: process_creation
product: windows
detection:
selection:
ParentImage|endswith:
- '\outlook.exe'
- '\thunderbird.exe'
Image|endswith:
- '\cmd.exe'
- '\powershell.exe'
- '\wscript.exe'
- '\cscript.exe'
condition: selection
falsepositives:
- Legitimate activity from CVE-2018-25302
Source: Shimi's Cyber World · License & reuse
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2018-25302 | Buffer Overflow | Allok AVI to DVD SVCD VCD Converter 4.0.1217 |
| CVE-2018-25302 | RCE | Structured Exception Handling (SEH) based buffer overflow |
| CVE-2018-25302 | Code Execution | Malicious string in the 'License Name' field |
Written by SCW Vulnerability Desk
Source & Attribution
| Source Platform | NVD |
| Channel | National Vulnerability Database |
| Published | April 29, 2026 at 23:16 UTC |
This content was AI-rewritten and enriched by Shimi's Cyber World based on the original source. All intellectual property rights remain with the original author.
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