CVE-2022-34263 in Illustrator
Summary
by MITRE • 08/11/2022
Adobe Illustrator versions 26.3.1 (and earlier) and 25.4.6 (and earlier) are affected by a Use After Free vulnerability that could result in 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.
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Analysis
by VulDB Data Team • 04/30/2025
Adobe Illustrator suffers from a critical use after free vulnerability (CVE-2022-34263) affecting versions 26.3.1 and earlier, as well as 25.4.6 and earlier. This vulnerability resides in the application's handling of specially crafted files that trigger improper memory management during file processing. The flaw occurs when the software attempts to access memory that has already been freed, creating a scenario where malicious code can be executed with the privileges of the currently logged-in user. This represents a severe security risk as it allows attackers to gain unauthorized access to systems through targeted file delivery.
The technical implementation of this vulnerability demonstrates a classic memory safety issue that falls under the CWE-416 category for use after free conditions. When a malicious file is opened within Illustrator, the application's parsing routine fails to properly manage memory references, leading to a situation where freed memory blocks can be reallocated and subsequently accessed by attacker-controlled code. This memory corruption vulnerability enables remote code execution without requiring administrative privileges, making it particularly dangerous in enterprise environments where users frequently open files from untrusted sources. The exploit requires user interaction through the simple act of opening a crafted file, which aligns with common social engineering attack patterns.
The operational impact of this vulnerability extends beyond simple code execution, as it provides attackers with a persistent foothold within targeted systems. Successful exploitation allows threat actors to install additional malware, steal sensitive data, or establish backdoor access for continued unauthorized access. The vulnerability affects both major release lines of Illustrator, indicating a fundamental flaw in the application's memory management that spans multiple versions. Organizations using Adobe Illustrator in production environments face significant risk, particularly in sectors handling sensitive information where the potential for data breaches or system compromise could result in substantial financial and reputational damage.
Mitigation strategies should focus on immediate patch management and user education. Adobe has released security updates addressing this vulnerability, and organizations must prioritize deployment of these patches across all affected systems. Additionally, implementing file validation controls and restricting user permissions when opening files from external sources can significantly reduce exploitation risk. Network monitoring should be enhanced to detect suspicious file access patterns, while security awareness training should emphasize the dangers of opening untrusted files from unknown sources. The ATT&CK framework categorizes this vulnerability under T1203 - Exploitation for Client Execution, highlighting the need for layered defensive measures including application whitelisting and endpoint protection solutions that can detect and prevent exploitation attempts.