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PatchSiren cyber security CVE debrief

CVE-2026-34709 Adobe CVE debrief

CVE-2026-34709 is a HIGH-severity vulnerability in Adobe Substance 3D Sampler. Versions 6.0.0 and earlier are affected by an out-of-bounds write vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction, as a victim must open a malicious file.

Vendor
Adobe
Product
Substance3D - Sampler
CVSS
HIGH 7.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-09
Original CVE updated
2026-08-28
Advisory published
2026-06-09
Advisory updated
2026-08-28

Who should care

Users of Adobe Substance 3D Sampler versions 6.0.0 and earlier should apply updates or mitigations to prevent potential arbitrary code execution.

Technical summary

The vulnerability, tracked as CVE-2026-34709, has a CVSS score of 7.8 and is classified as HIGH severity. It is caused by an out-of-bounds write issue in Adobe Substance 3D Sampler. The vulnerability requires user interaction to exploit, as it involves opening a malicious file.

Defensive priority

High

Recommended defensive actions

  • Apply updates: Upgrade to Adobe Substance 3D Sampler version 6.0.1 or later.
  • User awareness: Educate users about the risks of opening malicious files.

Evidence notes

The CVE was published on 2026-06-09T20:16:39.633Z and last modified on 2026-06-11T13:05:34.603Z. The vulnerability affects Adobe Substance 3D Sampler versions 6.0.0 and earlier.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-34709 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-34709

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-34709 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-34709

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental 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.