CVE-2026-103823 Adobe CVE debrief

Who should care

Defenders responsible for Adobe Substance 3D Designer installations, especially in environments where user interaction with files is common, should assess exposure and prioritize updates.

Why it matters

CVE-2026-103823 is a medium-severity vulnerability in Adobe Substance 3D Designer that can lead to a denial-of-service condition. Defenders should verify and update installations, monitor user interactions, and restrict access to untrusted files.

• Denial-of-service condition through application crash
• Requires verification of Substance 3D Designer version and user interaction monitoring
• Potential for malicious file exploitation requires restricted access controls

Technical summary

A Stack-based Buffer Overflow vulnerability exists in Adobe Substance 3D Designer, which could lead to an application denial-of-service. Exploitation requires user interaction, as a victim must open a malicious file. The vulnerability is addressed in version 16.0.7. Defenders should prioritize verifying and updating Substance 3D Designer installations, especially versions prior to 16.0.7, and monitor for malicious file interactions. The vulnerability has a medium severity and is classified as CWE-121. The CVE Program and NVD provide official records of the vulnerability.

Defensive priority

Defenders should prioritize verifying and updating Substance 3D Designer installations, especially versions prior to 16.0.7, and monitor for malicious file interactions.

Recommended defensive actions

• Verify and update Substance 3D Designer installations to version 16.0.7 or later
• Monitor user interactions with Substance 3D Designer for malicious file openings
• Implement security measures to restrict access to untrusted files
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE Program and NVD provide official records of the vulnerability. Adobe has released a vendor advisory detailing the issue and recommended updates. The vulnerability affects Adobe Substance 3D Designer, with a fix available in version 16.0.7. Defenders should verify and update installations, monitor user interactions, and restrict access to untrusted files. The CVE record was published on 2026-10-13T20:34:36.481Z and has not been modified since then. The official CVE Program record and NVD vulnerability detail provide additional

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.