Process-memory disclosure via malicious file
Published Feb 10, 2026 · Updated Feb 10, 2026
Out-of-bounds read in Adobe Substance 3D Designer 15.1.0 and earlier allows attackers to disclose process memory via a malicious file. Adobe identifies the issue only as an out-of-bounds read during malicious-file handling and has not disclosed the parser, file format, or failed bounds check. Exploitation requires a victim to open the file and is limited to reading sensitive process memory, with no reported data modification or service interruption.
Summary
What happened
Out-of-bounds read in Adobe Substance 3D Designer 15.1.0 and earlier allows attackers to disclose process memory via a malicious file. Adobe identifies the issue only as an out-of-bounds read during malicious-file handling and has not disclosed the parser, file format, or failed bounds check. Exploitation requires a victim to open the file and is limited to reading sensitive process memory, with no reported data modification or service interruption.
The record
- CVE
- CVE-2026-21340
- Published
- Feb 10, 2026
- Updated
- Feb 10, 2026
- Vendor
- Adobe
- Product
- Substance 3D Designer
- Classifications
- CWE-125, T1204.002
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Feb 10, 2026CVE publishedPublication date reported by the CVE source.
- Feb 10, 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 <=15.1.0
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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