EUVD-2026-65682
GHSA-2q2p-5377-jqwp
Severity by source
AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
File must be opened locally (AV:L), no privileges needed to deliver it (PR:N), user must open it (UI:R), and full impact is confined to the current user's system (S:U/C:H/I:H/A:H).
Primary rating from Vendor (adobe).
CVSS VectorVendor: adobe
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Lifecycle Timeline
2DescriptionCVE.org
Substance3D - Painter 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 Painter enables arbitrary code execution under the privileges of the current user when a victim opens a specially crafted malicious file. The flaw (CWE-787) resides in file-parsing logic and delivers full confidentiality, integrity, and availability compromise of the affected system. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a victim user to manually open a malicious file using Adobe Substance 3D Painter (UI:R). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 7.8 High score with AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H accurately represents the risk profile: full system impact (C:H/I:H/A:H) on the vulnerable system but constrained by the requirement for local user interaction (UI:R). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker crafts a maliciously structured Substance 3D Painter project or asset file designed to trigger an out-of-bounds write in the application's file parser. The file is delivered to a target - likely a 3D artist, game developer, or VFX professional - via email, a compromised asset-sharing platform, or a poisoned online asset library. … |
| Remediation | Apply the vendor-released patch documented in Adobe Security Bulletin APSB26-129 at https://helpx.adobe.com/security/products/substance3d_painter/apsb26-129.html - the exact fixed version must be retrieved from that advisory, as no specific patched version number was included in the available intelligence data. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify all users running Adobe Substance 3D Painter, notify them of the vulnerability, and restrict file-opening from external sources; establish a watch for suspicious file delivery attempts targeting creative staff. …
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Same weakness CWE-787 – Out-of-bounds Write
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External POC / Exploit Code
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