Code execution via malicious file heap overflow
Published Sep 3, 2026 · Updated Sep 3, 2026
Heap-based buffer overflow in Adobe Substance 3D Sampler 6.0.1 and earlier allows attackers to execute code when a user opens a malicious file. Adobe has not published the affected parser, file format, or the specific allocation or write operation that overruns heap memory. Exploitation requires user interaction, and resulting code runs in the context of the current user.
Summary
What happened
Heap-based buffer overflow in Adobe Substance 3D Sampler 6.0.1 and earlier allows attackers to execute code when a user opens a malicious file. Adobe has not published the affected parser, file format, or the specific allocation or write operation that overruns heap memory. Exploitation requires user interaction, and resulting code runs in the context of the current user.
The record
- CVE
- CVE-2026-83959
- Published
- Sep 3, 2026
- Updated
- Sep 3, 2026
- Vendor
- Adobe
- Product
- Adobe Substance 3D Sampler
- Classifications
- CWE-122, T1204.002, T1203
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 3, 2026CVE publishedPublication date reported by the CVE source.
- Sep 3, 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 <=6.0.1
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.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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