PatchSiren cyber security CVE debrief
CVE-2026-71382 Adobe CVE debrief
A high-severity out-of-bounds write vulnerability exists in Adobe Substance 3D Sampler, which could lead to arbitrary code execution if a user opens a malicious file. This issue requires user interaction, as a victim must open a malicious file. The vulnerability has a CVSS score of 7.8 and is considered HIGH severity. Defenders should assess exposure and prioritize patching, especially for systems and users with access to potentially malicious files. Users who open files from untrusted sources are at higher risk.
- Vendor
- Adobe
- Product
- Adobe Substance 3D Sampler
- CVSS
- HIGH 7.8
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-08-25
- Original CVE updated
- 2026-09-09
- Advisory published
- 2026-08-25
- Advisory updated
- 2026-09-09
Who should care
Defenders responsible for systems with Adobe Substance 3D Sampler installed should assess exposure and prioritize patching. Users who open files from untrusted sources are at higher risk.
Why it matters
A high-severity vulnerability in Adobe Substance 3D Sampler could lead to arbitrary code execution if exploited. Defenders should prioritize patching and restrict user access to potentially malicious files.
- Potential arbitrary code execution if a user opens a malicious file
- Requires user interaction to exploit
- High-severity vulnerability with a CVSS score of 7.8
Technical summary
The vulnerability is caused by an out-of-bounds write issue in Adobe Substance 3D Sampler. If exploited, it could result in arbitrary code execution in the context of the current user. This requires user interaction, as a victim must open a malicious file. The vulnerability has a CVSS score of 7.8 and is considered HIGH severity. The issue is related to the handling of malicious files, and defenders should prioritize patching and restrict user access to potentially malicious files. The vulnerability affects Adobe Substance 3D Sampler, and defenders should review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance.
Defensive priority
Defenders should prioritize patching this vulnerability, especially for systems and users with access to potentially malicious files.
Recommended defensive actions
- Patch Adobe Substance 3D Sampler to version 6.0.2 or later
- Restrict user access to potentially malicious files
- Monitor system logs for suspicious activity
- Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
- 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
Evidence notes
The vulnerability is described in the CVE and NVD records, with additional details from Adobe's security advisory. The CVE record was published on 2026-08-25T18:18:00.477Z and has not been modified since then. There are no known instances of exploitation, but defenders should verify affected scope and severity based on vendor guidance. The vulnerability affects Adobe Substance 3D Sampler, and defenders should review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance.
Sources and references
Verified primary and authoritative sources
-
CVE-2026-71382 CVE Program record
Publisher, destination, and source semantics verified
URL: https://www.cve.org/CVERecord?id=CVE-2026-71382
CVE Program - Official CVE Program record with source-provided CVE metadata.
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CVE-2026-71382 NVD vulnerability detail
Publisher, destination, and source semantics verified
URL: https://nvd.nist.gov/vuln/detail/CVE-2026-71382
NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.
Supplemental references
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Source reference
Unverified legacy reference
URL: https://helpx.adobe.com/security/products/substance3d-sampler/apsb26-121.html
[email protected] - Vendor Advisory
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.