CVE-2021-39847 XMP Toolkit SDK Stack-based Buffer Overflow Could Lead To Arbitrary Code Execution

High 7.8 Published 1 Sep 2021 Updated 3 Nov 2025

A stack-based buffer overflow in the XMP Toolkit SDK allows arbitrary code execution when a user opens a crafted file.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: Available

What is CVE-2021-39847?

CVE-2021-39847 is a high-severity memory corruption vulnerability in Debian Debian Linux, published on 1 Sep 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

XMP Toolkit SDK version 2020.1 (and earlier) is affected by a stack-based buffer overflow vulnerability potentially resulting in arbitrary code execution in the context of the current user. Exploitation requires user interaction in that a victim must open a crafted file.

Weakness: CWE-121

Which versions are affected by CVE-2021-39847?

It affects 2 products.

Products include Adobe Xmp Toolkit Software Development Kit, Debian Debian Linux.

How do I fix CVE-2021-39847?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2021-39847 being exploited?

There is no known exploitation of CVE-2021-39847 in the wild and no public exploit code.

All Debian Debian Linux vulnerabilities

Sources

Also known as DEBIAN-CVE-2021-39847, GHSA-pfx6-w2h7-5g2x, UBUNTU-CVE-2021-39847.