Arbitrary code execution via out-of-bounds memory write
Published May 12, 2026 · Updated May 12, 2026
Out-of-bounds write in Adobe Illustrator 29.8.6 and 30.3 and earlier allows attackers to execute code when a user opens a malicious file. Adobe has not disclosed the affected file format, parser, or memory operation beyond identifying an out-of-bounds write during file processing. Exploitation requires a user on Windows to open the crafted file, and successful code runs in the current user's context.
Summary
What happened
Out-of-bounds write in Adobe Illustrator 29.8.6 and 30.3 and earlier allows attackers to execute code when a user opens a malicious file. Adobe has not disclosed the affected file format, parser, or memory operation beyond identifying an out-of-bounds write during file processing. Exploitation requires a user on Windows to open the crafted file, and successful code runs in the current user's context.
The record
- CVE
- CVE-2026-34661
- Published
- May 12, 2026
- Updated
- May 12, 2026
- Vendor
- Adobe
- Product
- Adobe Illustrator
- Classifications
- CWE-787, T1204.002
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 12, 2026CVE publishedPublication date reported by the CVE source.
- May 12, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <=30.3
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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