Is CVE-2021-21104 actively exploited?

No active exploitation of CVE-2021-21104 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-21104 be exploited remotely?

Yes. CVE-2021-21104 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-21104?

CVE-2021-21104 has a CVSS score of 8.8 (HIGH).

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HIGH

CVE-2021-21104

CWE-788Published: September 8, 2021· Updated: Jun 17, 2026

8.8

CVSS v3.1

Official Description

Adobe Illustrator version 25.2 (and earlier) is affected by a memory corruption vulnerability when parsing a specially crafted file. An unauthenticated attacker could leverage this vulnerability to remote 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.

NVD Source

Technical Analysis

CVE-2021-21104 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.