CVE-2026-21305CWE-787

CVE-2026-21305

High · published January 14, 2026

CVSS v3.1
7.8
EPSS
0%
Percentile
6.0
In the wild
Unconfirmed
What it is

⚡ A single careless file is all it takes to trigger chaos! An out-of-bounds write vulnerability in Substance3D - Painter could allow arbitrary code execution with just one innocent click. 🔥 Think of it like a restaurant that lets customers modify their own meals without checking if those ingredients are safe — one sneaky substitution could spoil the whole dish! If exploited, this vulnerability would allow an attacker to run any code on your system in the current user's context. This could lead to devastating consequences, such as data theft, system corruption, or even a complete takeover of your machine!

Put simply

Think of it like a restaurant that lets customers modify their own meals without checking if those ingredients are safe — one sneaky substitution could spoil the whole dish! This vulnerability occurs due to an out-of-bounds write in versions 11.0.3 and earlier of Substance3D - Painter, which can be triggered when a user opens a specially crafted malicious file.

What to do

If exploited, this vulnerability would allow an attacker to run any code on your system in the current user's context. This could lead to devastating consequences, such as data theft, system corruption, or even a complete takeover of your machine! Update to Substance3D - Painter version 11.0.4 or later to patch this vulnerability. Additionally, educate users to avoid opening untrusted files, as interaction is required for exploitation. Always keep software updated to reduce security risks! You've got this! By following these steps, you can protect your system and maintain your security hero status! 🛡️

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
0.00170 · 6.0th percentile
Weakness
CWE-787 · Out-of-bounds Write
Published
2026-01-14T01:16Z
Affected products (1)
ProductVersionsFixed in
adobe/substance_3d_painter< 11.1.211.1.2
References (1)
EPSS history
Timeline
  • 13 JAN 19:33Z
    Substance3D - Painter | Out-of-bounds Write (CWE-787)
    cvelistv5