CVE-2026-34661

Illustrator | Out-of-bounds Write (CWE-787)

Published May 12, 2026 CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Description

Illustrator versions 29.8.6, 30.3 and earlier are affected by an out-of-bounds write 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.

Analysis

Technical impact

Adobe Illustrator versions 29.8.6, 30.3, and earlier contain an out-of-bounds write flaw that can be triggered by processing a specially crafted document. The flaw allows memory corruption, which may lead to arbitrary code execution with the privileges of the current user. The vulnerability is classified as CWE‑787 and its CVSS score of 7.8 indicates a high severity with the potential for significant confidentiality, integrity, and availability impact.

Affected Systems

Adobe Illustrator, versions 29.8.6, 30.3, and all earlier releases.

Risk and Exploitability

The flaw is not listed in CISA’s KEV catalog and its EPSS score is not available; however, the CVSS rating of 7.8 signals a severe potential risk. Exploitation requires user interaction; an attacker must supply a malicious .ai file and persuade the victim to open it. The attack vector is therefore a file‑based, user‑initiated exploit that leverages the document parsing routine to corrupt memory.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Adobe

Illustrator Desktop 2026

unaffected

Version	Status	Constraints
`0`	affected	≤ 30.3
`30.4`	unaffected	—

Adobe

Illustrator Desktop 2025

unaffected

Version	Status	Constraints
`0`	affected	≤ 29.8.6
`29.8.7`	unaffected	—

Configuration 1 [-]

AND

OR	cpe:2.3:a:adobe:illustrator::::::::
	cpe:2.3:a:adobe:illustrator::::::::

OR	cpe:2.3:o:apple:macos:-:::::::*
	cpe:2.3:o:microsoft:windows:-:::::::*

No data.

Vendor Product Versions

Adobe

Illustrator

Version	Status	Scheme	Platform
`[0,30.3]`	affected	semver	—

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

Apply the latest Adobe Illustrator update that includes the fix (Adobe APSB26‑51).
Avoid opening Illustrator files from untrusted or unknown sources, and verify file integrity before opening.
Monitor systems for abnormal activity such as unexpected process creation or privilege escalation that could indicate exploitation of this flaw.

Generated by OpenCVE AI on May 12, 2026 at 20:40 UTC.

Tracking

Advisories

No advisories available

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.166% probability within 30 days)

Exploitation none

Automatable no

Technical Impact total

References

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

History

May 13, 2026 10:15 AM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

May 12, 2026 7:15 PM First appearance in the feed. Affected versions updated. Affected vendors updated View changes

Type	Values Removed	Values Added
First Time appeared		Adobe Adobe illustrator Apple Apple macos Microsoft Microsoft windows
CPEs		cpe:2.3:a:adobe:illustrator:::::::: cpe:2.3:o:apple:macos:-:::::::* cpe:2.3:o:microsoft:windows:-:::::::*
Vendors & Products		Adobe Adobe illustrator Apple Apple macos Microsoft Microsoft windows

May 12, 2026 6:15 PM Description updated. Title updated. Weaknesses updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description		Illustrator versions 29.8.6, 30.3 and earlier are affected by an out-of-bounds write 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.
Title		Illustrator \| Out-of-bounds Write (CWE-787)
Weaknesses		CWE-787
References		https://helpx.adobe.com/security/products/illustrator/apsb26-51.html
Metrics		cvssV3_1 `{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}`