Arbitrary code execution via malicious file parsing
Published Sep 22, 2026 · Updated Sep 22, 2026
Out-of-bounds write in Adobe Substance 3D Modeler 1.22.6 and earlier allows attackers to execute code via a malicious file. Adobe has not published the affected file format, parser, or bounds-checking operation that writes beyond its allocated buffer. Exploitation requires a victim to open the file, and resulting code runs with the victim's current-user privileges.
Summary
What happened
Out-of-bounds write in Adobe Substance 3D Modeler 1.22.6 and earlier allows attackers to execute code via a malicious file. Adobe has not published the affected file format, parser, or bounds-checking operation that writes beyond its allocated buffer. Exploitation requires a victim to open the file, and resulting code runs with the victim's current-user privileges.
The record
- CVE
- CVE-2026-83963
- Published
- Sep 22, 2026
- Updated
- Sep 22, 2026
- Vendor
- Adobe Inc.
- Product
- Substance 3D Modeler
- Classifications
- CWE-787, T1203, T1204.002
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 22, 2026CVE publishedPublication date reported by the CVE source.
- Sep 22, 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 <=1.22.6
What conditions does exploitation require?
What is affected?
Published CVSS scores
No CVSS assessment is available in this record.
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.
Activity data is delayed. The latest report is Sep 28, 2026.
Weakness, pattern, technique
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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