CVE-2021-27033 Double Free File Parsing Vulnerability in Autodesk Design Review

High 8.1 Published 9 Jul 2021 Updated 19 Jun 2026

Opening a malicious PDF in Autodesk Design Review triggers a double free, allowing attackers to execute arbitrary code.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2021-27033?

CVE-2021-27033 is a high-severity use after free vulnerability in Autodesk Design Review, published on 9 Jul 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

A maliciously crafted PDF file, when opened by a user in Autodesk Design Review, can trigger a Double Free vulnerability in the Autodesk Design Review application. A malicious actor may leverage this vulnerability to cause memory corruption and execute arbitrary code in the context of the current process.

Weakness: CWE-415

Which versions are affected by CVE-2021-27033?

It affects 1 product.

Products include Autodesk Design Review.

How do I fix CVE-2021-27033?

No fix has been published for CVE-2021-27033 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2021-27033 being exploited?

There is no known exploitation of CVE-2021-27033 in the wild and no public exploit code.

Sources

Also known as GHSA-65m4-497r-hv9h.