EUVD-2026-65637
GHSA-mg2m-vr4g-p53h
Severity by source
AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
File-open attack is inherently local (AV:L); no attacker privileges needed (PR:N); mandatory victim interaction (UI:R); full CIA impact with unchanged scope upon successful exploitation.
Primary rating from Vendor (adobe).
CVSS VectorVendor: adobe
Lifecycle Timeline
2DescriptionCVE.org
Substance3D - Sampler is 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.
AnalysisAI
Out-of-bounds write in Adobe Substance 3D Sampler enables arbitrary code execution in the current user's context when a victim opens a specially crafted malicious file. The vulnerability is rooted in CWE-787 memory corruption during file parsing, a classic attack surface in creative content tools where complex format parsers frequently handle untrusted input. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires one specific condition: the victim must actively open a malicious file in Adobe Substance 3D Sampler. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 score of 7.8 (High) is well-supported by the vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Apply the vendor-released patch per Adobe security advisory APSB26-121, available at https://helpx.adobe.com/security/products/substance3d-sampler/apsb26-121.html. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all systems running Adobe Substance 3D Sampler and disable the application or implement strict file-opening restrictions until a patch is available. …
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Same weakness CWE-787 – Out-of-bounds Write
View allSame technique Memory Corruption
View allShare
External POC / Exploit Code
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