EUVD-2026-65684
GHSA-xcgq-vrwv-q7gg
Severity by source
AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
File-parsing vector requires no attacker privileges on target; mandatory user interaction (UI:R) and local execution context (AV:L) are both confirmed by description.
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 within the current user's security context via a maliciously crafted file. The flaw (CWE-787) is triggered during file parsing, and the CVSS vector confirms full confidentiality, integrity, and availability impact upon successful exploitation. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the victim to actively open a maliciously crafted file in Adobe Substance 3D Painter - this is a mandatory and explicit prerequisite stated in the CVE description. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 7.8 High score is well-supported by the C:H/I:H/A:H triad reflecting full code execution potential, though the AV:L and UI:R components meaningfully constrain realistic exploitation to social engineering or supply chain scenarios where an attacker can deliver a crafted file to a user who then opens it. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker crafts a malicious Substance 3D Painter project or asset file embedding a payload that triggers the out-of-bounds write during file parsing, then delivers it to a target artist or technical director via email, a shared cloud drive, or a compromised asset repository. When the victim opens the file in Substance 3D Painter, the parser writes out of bounds, corrupting memory in a manner that redirects execution to attacker-controlled code running with the privileges of the logged-in user. … |
| Remediation | Apply the update issued by Adobe under Security Bulletin APSB26-129 (https://helpx.adobe.com/security/products/substance3d_painter/apsb26-129.html). … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, create an inventory of all systems running Adobe Substance 3D Painter and identify business-critical workflows and user populations. …
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Same weakness CWE-787 – Out-of-bounds Write
View allSame technique Memory Corruption
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External POC / Exploit Code
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