CVE-2026-21365 Substance3D - Painter | Out-of-bounds Read (CWE-125)
An out-of-bounds read in Substance3D Painter allows attackers to access sensitive memory information by tricking users into opening malicious files.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-21365?
CVE-2026-21365 is a medium-severity vulnerability in Adobe Substance 3d Painter, published on 10 Mar 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
Substance3D - Painter versions 11.1.2 and earlier are affected by an out-of-bounds read vulnerability that could lead to memory exposure. An attacker could leverage this vulnerability to access sensitive information stored in memory. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Weakness: CWE-125
Which versions are affected by CVE-2026-21365?
It affects 1 product.
Products include Adobe Substance 3d Painter.
How do I fix CVE-2026-21365?
No fix has been published for CVE-2026-21365 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-21365 being exploited?
There is no known exploitation of CVE-2026-21365 in the wild and no public exploit code.
Other vulnerabilities in Adobe Substance 3d Painter
- CVE-2026-34674 Substance3D - Sampler | Heap-based Buffer Overflow (CWE-122)
- CVE-2026-75749 Substance3D - Painter | Out-of-bounds Write (CWE-787)
- CVE-2026-75750 Substance3D - Painter | Heap-based Buffer Overflow (CWE-122)
- CVE-2026-75766 Substance3D - Painter | Heap-based Buffer Overflow (CWE-122)
- CVE-2026-75767 Substance3D - Painter | Heap-based Buffer Overflow (CWE-122)
Sources
Also known as GHSA-x68h-gcx6-wqqp.