ZDI-CAN-20256: Adobe Substance 3D Stager USD File Parsing Out-Of-Bounds Read Remote Code Execution Vulnerability
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
Adobe Substance 3D Stager version 2.0.1 (and earlier) is affected by an out-of-bounds read vulnerability when parsing a crafted file, which could result in a read past the end of an allocated memory structure. An attacker could leverage this vulnerability to execute code in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Adobe | Substance3D - Stager | up to 2.0.1; up to None | — | No fix listed | CNA |
- Substance3D - Stager VendorAdobe Affected up to 2.0.1; up to None Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-26391
- 2026-10-03 Alias added: GHSA-f47f-6q6g-frrr
References
More Adobe Substance 3d Stager vulnerabilities
- TI-2025-38223 Substance3D - Stager | Integer Underflow (Wrap or Wraparound) (CWE-191) CVSS 3.1HIGH 7.8
- TI-2025-38222 Substance3D - Stager | Use After Free (CWE-416) CVSS 3.1HIGH 7.8
- TI-2025-38221 Substance3D - Stager | Out-of-bounds Read (CWE-125) CVSS 3.1HIGH 7.8
- TI-2025-28266 Substance3D - Stager | Use After Free (CWE-416) CVSS 3.1HIGH 7.8
- TI-2025-28265 Substance3D - Stager | Use After Free (CWE-416) CVSS 3.1HIGH 7.8
- TI-2025-28263 Substance3D - Stager | Use After Free (CWE-416) CVSS 3.1HIGH 7.8
Sources
- CVE-2023-26391 · CVE Program
- CVE-2023-26391 · NVD
- FIRST EPSS
- GHSA-f47f-6q6g-frrr · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences