EUVD-2026-65632
GHSA-p729-4h92-qhmm
Severity by source
AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
File-parsing attack requires local file delivery and victim interaction (AV:L, UI:R); no attacker privileges needed (PR:N); full user-level code execution drives C:H/I:H/A:H.
Primary rating from Vendor (adobe).
CVSS VectorVendor: adobe
Lifecycle Timeline
2DescriptionCVE.org
Substance3D - Designer 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 Designer enables arbitrary code execution at the privilege level of the logged-in user when a victim opens a specially crafted project or material file. The vulnerability carries a CVSS 7.8 score with high confidentiality, integrity, and availability impact, and the CPE wildcard indicates all tracked versions may be affected. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires that the victim actively open a malicious file using Adobe Substance 3D Designer - this is the sole prerequisite user interaction. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 7.8 vector (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H) accurately reflects a file-borne, user-triggered attack of low complexity that delivers full user-level code execution - a pattern consistent with a well-crafted spear-phishing or watering-hole scenario. … 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 update described in Adobe security advisory APSB26-115 at https://helpx.adobe.com/security/products/substance3d_designer/apsb26-115.html. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, restrict Substance 3D Designer access to essential personnel only and implement a user advisory against opening project or material files from untrusted or external sources. …
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Same weakness CWE-787 – Out-of-bounds Write
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External POC / Exploit Code
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