Is CVE-2026-34663 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-34663 being exploited in the wild.

How severe is CVE-2026-34663?

Medium severity, with a CVSS score of 5.5, 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-2026-34663?

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-2026-34663 attacked?

It is attacked with local access, in a network appliance.

Am I affected by CVE-2026-34663?

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.

CVE-2026-34663: Adobe Illustrator out-of-bounds read

CVE-2026-34663 · Severity: medium · CVSS 5.5 · Published 2026-05-12

Adobe Illustrator, a professional graphic design application, is affected by a security flaw that could allow an attacker to access sensitive information. To exploit this, an attacker would need to trick a user into opening a specially crafted malicious file. Successful exploitation could lead to the unauthorized disclosure of sensitive memory contents from the user's system.

Technologies: Adobe Illustrator. Vendors: Adobe.

Quick answers

Is CVE-2026-34663 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-34663 being exploited in the wild.
How severe is CVE-2026-34663?: Medium severity, with a CVSS score of 5.5, 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-2026-34663?: 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-2026-34663 attacked?: It is attacked with local access, in a network appliance.
Am I affected by CVE-2026-34663?: 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

An out-of-bounds read vulnerability (CWE-125) exists in Adobe Illustrator versions 29.8.6, 30.3, and earlier. The flaw is triggered when the application processes a malformed file, leading to memory access beyond the intended buffer. This is a local attack vector that requires user interaction, specifically the opening of a malicious file by the victim. Successful exploitation allows an attacker to read sensitive information from the process memory, which could potentially be used to bypass security mitigations or leak private data. Adobe has addressed this in newer versions as documented in APSB26-51.

Affected products

Adobe Illustrator 29.8.6 and earlier, 30.3 and earlier

Timeline

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

References

https://helpx.adobe.com/security/products/illustrator/apsb26-51.html

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