ZDI-CAN-20265: Adobe Substance 3D Stager USDC File Parsing Uninitialized Variable Information Disclosure Vulnerability
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · None
- 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 Access of Uninitialized Pointer vulnerability that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to bypass mitigations such as ASLR. 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
- Partial
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-2023-26387
- 2026-10-03 Alias added: GHSA-vr33-6wrq-rrvx
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-2023-26387 · CVE Program
- CVE-2023-26387 · NVD
- FIRST EPSS
- GHSA-vr33-6wrq-rrvx · 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