Out-of-bounds read in Adobe Substance 3D Stager file parsing
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
Adobe Substance 3D Stager through 3.1.8 contains an out-of-bounds read flaw (CWE-125) when it parses a crafted file, reading past the end of an allocated memory structure. An attacker can execute code in the context of the current user. Exploitation requires the victim to open a malicious file.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
Substance3D - Stager 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
Remediation
Update Adobe Substance 3D Stager to version 3.1.9 or later.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
- Fix · CNA Adobe Substance 3D Stager (Adobe) Fixed in 3.1.9
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
Adobe Substance 3D Stager — adobe.com/trust/security/products/substance3d-stager/apsb26…
16 records Highest priority Priority LOW 16 LOW
Other records, highest priority first
- TI-2026-73579 Stack-based buffer overflow in Adobe Substance 3D StagerPriority LOW 35
- TI-2026-73572 Use after free in Substance3D Stager allows code executionPriority LOW 35
- TI-2026-73571 Out-of-bounds read in Adobe Substance 3D StagerPriority LOW 35
Timeline
- 2026-10-13 Threatist record created from CVE-2026-103841
- 2026-10-13 Alias added: GHSA-5w47-f44c-7pjr
- 2026-10-14 CISA SSVC decision points changed
- 2026-10-14 Priority changed: MEDIUM → LOW
- 2026-10-14 CISA SSVC decision points changed
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-2026-103841 · CVE Program
- CVE-2026-103841 · NVD
- FIRST EPSS
- GHSA-5w47-f44c-7pjr · 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