# CVE-2026-27271: Adobe Illustrator heap buffer overflow

Source: https://junglewise.ai/threats/cve-2026-27271-adobe-illustrator-heap-buffer-overflow  
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-2026-27271 · Severity: high · CVSS 7.8 · Published 2026-03-10

Adobe Illustrator is a professional vector graphics editor used by designers and creative professionals. A heap buffer overflow vulnerability could allow an attacker to execute arbitrary code on a user's computer if they trick the user into opening a malicious Illustrator file, potentially compromising the system and any sensitive design or business data stored on it.

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

## Quick answers

**Is CVE-2026-27271 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-27271 being exploited in the wild.

**How severe is CVE-2026-27271?** 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-2026-27271?** 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-2026-27271 attacked?** It is attacked with local access.

**Am I affected by CVE-2026-27271?** 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 a heap-based buffer overflow in Adobe Illustrator versions 29.8.4, 30.1 and earlier. The flaw exists in how the application processes file input, and exploitation requires user interaction—specifically, the victim must open a crafted malicious file. A successful exploit allows an attacker to execute arbitrary code in the context of the logged-in user. There is no evidence of active exploitation in the wild at this time. Patches are expected to be available from Adobe.

## 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)