CVE-2026-34687: Adobe Illustrator heap buffer overflow

CVE-2026-34687 · Severity: high · CVSS 7.8 · Published 2026-05-12

Adobe Illustrator, a professional graphic design application, is affected by a security flaw that could allow an attacker to take control of a user's computer. To exploit this, an attacker would need to trick a user into opening a specially crafted malicious file. Successful exploitation could lead to unauthorized software installation, data theft, or complete system compromise in the context of the logged-in user.

Technologies: Adobe Illustrator. Vendors: Adobe.

Quick answers

Is CVE-2026-34687 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-34687 being exploited in the wild.
How severe is CVE-2026-34687?
High severity, with a CVSS score of 7.8, published 12 May 2026.
Which products and versions are affected?
Adobe Illustrator 29.8.6 and earlier, 30.3 and earlier.
Is there a fix for CVE-2026-34687?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-34687 attacked?
It is attacked with local access, in a network appliance.
Am I affected by CVE-2026-34687?
Check whether you run Adobe Illustrator at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A heap-based buffer overflow (CWE-122) exists in Adobe Illustrator versions 29.8.6, 30.3 and earlier. The vulnerability is triggered when the application improperly handles memory during the parsing of a specially crafted file. An attacker can achieve arbitrary code execution in the context of the current user by convincing a victim to open a malicious document. The attack vector is local (file-based) and requires user interaction. Adobe has addressed this in updated versions of the software.

Affected products

  • Adobe Illustrator 29.8.6 and earlier, 30.3 and earlier

Timeline

  • 2026-05-12: disclosed
  • 2026-05-12: advisory

References

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