CVE-2026-21343CWE-125

CVE-2026-21343

High · published February 11, 2026

CVSS v3.1
7.8
EPSS
0%
Percentile
8.1
In the wild
Unconfirmed
What it is

⚡ An out-of-bounds read vulnerability in Substance3D's Stager could let attackers execute code, all thanks to a crafty file! 🐍 Imagine a librarian who misfiles a book, accidentally allowing someone to peek into all the surrounding shelves! This vulnerability can lead to unauthorized access to memory, similar to accessing hidden compartments in a library without permission. If an unsuspecting user opens a malicious file, an attacker could gain control to execute any code in the context of that user. This means they might access sensitive data, manipulate files, or even take over the user's system. Yikes!

Put simply

Imagine a librarian who misfiles a book, accidentally allowing someone to peek into all the surrounding shelves! This vulnerability can lead to unauthorized access to memory, similar to accessing hidden compartments in a library without permission. This out-of-bounds read vulnerability occurs due to improper handling of parsed files in versions 3.1.6 and earlier of Substance3D's Stager. It allows an attacker to read memory locations beyond allocated boundaries, potentially leading to arbitrary code execution.

What to do

If an unsuspecting user opens a malicious file, an attacker could gain control to execute any code in the context of that user. This means they might access sensitive data, manipulate files, or even take over the user's system. Yikes! Update Substance3D Stager to version 3.1.7 or later immediately to patch this vulnerability. Educate users about file safety, and avoid opening suspicious files to minimize risk. You've got this! Stay vigilant and follow these steps to keep your systems safe! 🛡️

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00189 · 8.1th percentile
Weakness
CWE-125 · Out-of-bounds Read
Published
2026-02-11T00:15Z
Affected products (1)
ProductVersionsFixed in
adobe/substance_3d_stager< 3.1.73.1.7
References (1)
EPSS history
Timeline
  • 10 FEB 18:16Z
    Substance3D - Stager | Out-of-bounds Read (CWE-125)
    cvelistv5