# CVE-2026-21362: Adobe Illustrator out-of-bounds write

Source: https://junglewise.ai/threats/cve-2026-21362-adobe-illustrator-out-of-bounds-write  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-03-10. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-21362 · Severity: high · CVSS 7.8 · Published 2026-03-10

Adobe Illustrator is a professional graphics design application used to create vector artwork, logos, and illustrations. A memory corruption vulnerability in the application allows an attacker to execute arbitrary code with the privileges of the logged-in user by tricking them into opening a specially crafted file. This could lead to unauthorized access to sensitive design files, customer data, or serve as a foothold for further system compromise.

Technologies: [Adobe Illustrator](https://junglewise.ai/threats/technologies/illustrator). Vendors: [Adobe](https://junglewise.ai/threats/vendors/adobe).

## Quick answers

**Is CVE-2026-21362 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-21362 being exploited in the wild.

**How severe is CVE-2026-21362?** High severity, with a CVSS score of 7.8, published 10 March 2026.

**Which products and versions are affected?** Adobe Illustrator 29.8.4, 30.1 and earlier.

**Is there a fix for CVE-2026-21362?** 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-2026-21362 attacked?** It is attacked with local access.

**Am I affected by CVE-2026-21362?** 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

The vulnerability is an out-of-bounds write flaw in Adobe Illustrator versions 29.8.4 and 30.1 and earlier. The vulnerability can be exploited to execute arbitrary code in the context of the current user. The attack requires user interaction—a victim must open a malicious file (e.g., a specially crafted Illustrator document). No authentication or network access is required beyond the user's interaction with the malicious file. Successful exploitation results in arbitrary code execution with the privileges of the user running Illustrator.

## Affected products

- Adobe Illustrator 29.8.4, 30.1 and earlier

## Timeline

- 2026-03-10: disclosed

## References

- [https://helpx.adobe.com/security/products/illustrator/apsb26-18.html](https://helpx.adobe.com/security/products/illustrator/apsb26-18.html)

## Related threats

- [Adobe Illustrator out-of-bounds write vulnerability](https://junglewise.ai/threats/cve-2026-75992-adobe-illustrator-out-of-bounds-write-vulnerability)
- [Adobe Illustrator improper input validation in file parsing](https://junglewise.ai/threats/cve-2026-75991-adobe-illustrator-improper-input-validation-in-file-parsing)
- [Adobe Illustrator incorrect authorization arbitrary code execution](https://junglewise.ai/threats/cve-2026-75990-adobe-illustrator-incorrect-authorization-arbitrary-code)
- [Adobe Illustrator out-of-bounds read in file parsing](https://junglewise.ai/threats/cve-2026-71441-adobe-illustrator-out-of-bounds-read-in-file-parsing)
- [Adobe Illustrator out-of-bounds write in file processing](https://junglewise.ai/threats/cve-2026-48337-adobe-illustrator-out-of-bounds-write-in-file-processing)