CVE-2021-40753 Adobe After Effects SVG File Parsing Memory Corruption Arbitrary Code Execution

What is CVE-2021-40753?

CVE-2021-40753 is a high-severity memory corruption vulnerability in Adobe After Effects, published on 18 Nov 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

Adobe After Effects version 18.4.1 (and earlier) is affected by a memory corruption vulnerability due to insecure handling of a malicious SVG file, potentially resulting in arbitrary code execution in the context of the current user. User interaction is required in that the victim must open a specially crafted file to exploit this vulnerability.

Weakness: CWE-119, CWE-788

Which versions are affected by CVE-2021-40753?

It affects 1 product.

Products include Adobe After Effects.

How do I fix CVE-2021-40753?

No fix has been published for CVE-2021-40753 yet. Limit exposure of the affected software until one is available.

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

Is CVE-2021-40753 being exploited?

There is no known exploitation of CVE-2021-40753 in the wild and no public exploit code.

Other vulnerabilities in Adobe After Effects

• CVE-2020-3765 Memory corruption in Adobe After Effects Critical 9.8
• CVE-2021-28586 Adobe After Effects PDF file parsing out-of-bounds write could lead to remote code execution vulnerability High 8.8
• CVE-2021-28571 Adobe After Effects improper neutralization of special elements could lead to remote code execution High 8.3
• CVE-2021-28570 Adobe After Effects uncontrolled search path element vulnerability could lead to remote code execution High 8.3
• CVE-2026-48274 After Effects | Out-of-bounds Write (CWE-787) High 7.8

All Adobe After Effects vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-4rpr-3cr6-vg8r.