CVE-2021-21053 Adobe Illustrator Out-Of-Bounds Write Vulnerability Could Lead To Remote Code Execution

High 7.8 Published Updated

An attacker can achieve arbitrary code execution by tricking a user into opening a malicious file in Adobe Illustrator.

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
None listed

What is CVE-2021-21053?

CVE-2021-21053 is a high-severity memory corruption vulnerability in Adobe Illustrator, published on 11 Feb 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 Illustrator version 25.1 (and earlier) is affected by an Out-of-bounds Write vulnerability when parsing a crafted file. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Weakness: CWE-787

Which versions are affected by CVE-2021-21053?

It affects 1 product.

Products include Adobe Illustrator.

How do I fix CVE-2021-21053?

No fix has been published for CVE-2021-21053 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-2021-21053 being exploited?

There is no known exploitation of CVE-2021-21053 in the wild and no public exploit code.

All Adobe Illustrator vulnerabilities

Sources

Also known as GHSA-xp84-q6q5-7pv4.

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