# CVE-2026-48422 — Adobe Substance 3D Sampler

> As of 2026-08-27, CVE-2026-48422 is a HIGH-severity vulnerability in Adobe Substance 3D Sampler, CVSS v3.1 7.8, EPSS 0.3% (25.1th percentile). Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2026-48422, most recently “Adobe and Nvidia Patch Dozens of Vulnerabilities Across Multiple Products, Including Two Critical Flaws in Nvidia's NemoClaw AI Agent Stack and a CVSS 10.0 Adobe Campaign Classic Chain”.

**Last updated:** 2026-08-27

## What is CVE-2026-48422?

Substance3D - Sampler is affected by a Heap-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

The record classifies CVE-2026-48422 under weakness class [CWE-122](https://intel.threadlinqs.com/cwe/CWE-122). Its CVSS v3 base vector states that the flaw requires local access to the host, needs no prior authentication, needs a user to take an action first, and has high impact on confidentiality, integrity, availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 79 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 7.8 — HIGH (`CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`)
- **EPSS (FIRST):** 0.3% probability of exploitation in the next 30 days, higher than 25.1% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 4.9/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-08-25

## Is CVE-2026-48422 being exploited?

It currently carries a trending score of 30 in the Threadlinqs vulnerability feed.

## Affected products and versions

- [Adobe](https://intel.threadlinqs.com/vendors/adobe): Substance 3D Sampler

## How to fix CVE-2026-48422

Vendor advisory: [https://helpx.adobe.com/security/products/substance3d-sampler/apsb26-121.html](https://helpx.adobe.com/security/products/substance3d-sampler/apsb26-121.html). Apply the vendor fix referenced above to every affected product listed in this record, then confirm the running version against the vendor advisory.

## Threat activity tracking CVE-2026-48422

1 tracked threat in the Threadlinqs corpus references CVE-2026-48422, either in the campaign’s CVE list or as an indicator on the campaign record.

- [Adobe and Nvidia Patch Dozens of Vulnerabilities Across Multiple Products, Including Two Critical Flaws in Nvidia's NemoClaw AI Agent Stack and a CVSS 10.0 Adobe Campaign Classic Chain](https://intel.threadlinqs.com/threat/TL-2026-2152) — CRITICAL · 2026-08-26

## Sources

Enriched from CVE.org, FIRST EPSS.

**Vendor advisory and patch**

- [helpx.adobe.com — vendor advisory](https://helpx.adobe.com/security/products/substance3d-sampler/apsb26-121.html)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-48422
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