EUVD-2026-65683
GHSA-qxm2-4638-99w3
Severity by source
AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
File-parsing flaw triggered locally by opening a crafted file with no prior privileges; confidentiality-only impact with no integrity or availability effect.
Primary rating from Vendor (adobe).
CVSS VectorVendor: adobe
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Lifecycle Timeline
1DescriptionCVE.org
Substance3D - Painter is affected by an out-of-bounds read vulnerability that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to disclose sensitive information. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
AnalysisAI
Out-of-bounds read in Adobe Substance 3D Painter exposes sensitive process memory when a victim opens a specially crafted malicious file. The flaw, classified as CWE-125, causes the application to read beyond allocated buffer boundaries during file parsing, potentially leaking in-memory data such as credentials or session tokens accessible to the attacker. …
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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 Painter - this is the sole and mandatory prerequisite, reflected in UI:R in the CVSS vector. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 5.5 Medium rating accurately characterizes the real-world priority of this vulnerability: the local attack vector (AV:L) requires a victim to open a crafted file, no attacker privileges are needed prior to delivery (PR:N), but mandatory user interaction (UI:R) is the primary friction point. … 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 file or compatible import asset and delivers it to a target via spear-phishing email, a compromised file-sharing service, or a poisoned collaboration asset library commonly used by 3D artists. When the victim opens the file in Substance Painter, the out-of-bounds read is triggered during parsing and sensitive process memory - potentially including in-memory API keys, credentials, or proprietary texture data - is disclosed. … |
| Remediation | Apply the patch referenced in Adobe security advisory APSB26-129, available at https://helpx.adobe.com/security/products/substance3d_painter/apsb26-129.html; upgrade to the fixed version specified therein as the primary remediation action. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-125 – Out-of-bounds Read
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External POC / Exploit Code
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