Adobe Substance 3D Modeler Update Addresses 4 Vulnerabilities
Tech GuruQuick Answer
Substance 3D Modeler 1.22.8 fixes four memory-safety flaws that Adobe says can permit arbitrary code execution. The bulletin lists 1.22.6 and earlier as affected and requires user interaction in each CVSS vector. Use the stated fixed release rather than assuming an intervening version is safe.
Confirm Scope And Apply The Supported Fix
What to do now: Inventory Modeler installations and deploy 1.22.8 through the supported Creative Cloud or managed deployment channel. Reopen the application and verify its version before resuming untrusted-asset workflows.
Last verified: 2026-09-23 UTC. Recheck the authoritative advisory and supported distribution channel before changing production.
Scope And Authority
| Product scope | Adobe Substance 3D Modeler |
|---|---|
| Advisory | APSB26-155 |
| CVEs | CVE-2026-79906, CVE-2026-81998, CVE-2026-83962, CVE-2026-83963 |
| Adobe bulletin publication | 2026-09-22 (Adobe bulletin) |
| Recorded source timestamp (historical snapshot) | 2026-09-22 18:57:14.770 UTC |
| Affected versions | Substance 3D Modeler 1.22.6 and earlier |
| Fixed version | Substance 3D Modeler 1.22.8 |
| CVSS base score | 7.8 (CVSS v3.1) |
| CVSS severity | Critical |
| Exploitation status | Adobe states that it is not aware of exploitation; no exploitation claim is inferred. |
What Changed
CVE-2026-79906, CVE-2026-81998 and CVE-2026-83963 are out-of-bounds writes; CVE-2026-83962 is a stack-based buffer overflow. Adobe rates all four Critical with CVSS 3.1 scores of 7.8 and assigns update priority 3. The bulletin does not identify a common vulnerable file format and reports no known exploitation in the wild.
What To Validate Now
- Inventory. Locate Adobe Substance 3D Modeler deployments, versions, enabled features, exposure paths, owners, and dependent services.
- Establish applicability. Compare each deployment with the authority's affected-version statement: Substance 3D Modeler 1.22.6 and earlier Do not infer applicability from product family or severity alone.
- Remediate. Apply Substance 3D Modeler 1.22.8 through the supported vendor or project channel, following the current advisory and change-control requirements.
- Validate. Confirm 1.22.8 is running, then exercise approved project opening, model editing and import/export workflows. Preserve project backups and check dependent tools before wider deployment; no rendering or compatibility benchmark is claimed here.
- Retain evidence. Preserve asset and owner identifiers, the applicability decision, before-and-after versions, change approval, installation output, validation results, and any exception or rollback record.
Operational Cautions
Use the exact supported release stream and repository. Test dependencies, clusters, integrations, and rollback before broad deployment; a CVSS rating or reachable feature is not evidence of exploitation.
Evidence To Retain
- Exact product, release stream, package or application version, enabled feature, environment, and accountable owner.
- UTC timestamps, authority revision, approved change record, installer or package-manager output, and resulting version.
- Relevant logs and monitoring evidence, test results, exceptions, compensating controls, and rollback decisions.
Related TechGeeks Resources
Authoritative References
Correction policy: If the authority changes affected versions, fixed versions, severity, exploitation information, mitigations, or required action, TechGeeks will update this notice and its verification date.
