Is CVE-2026-21365 actively exploited?

No active exploitation of CVE-2026-21365 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-21365 be exploited remotely?

No. CVE-2026-21365 requires local access to exploit.

What is the CVSS score of CVE-2026-21365?

CVE-2026-21365 has a CVSS score of 5.5 (MEDIUM).

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MEDIUM

CVE-2026-21365

CWE-125Published: March 10, 2026· Updated: Mar 11, 2026

5.5

CVSS v3.1

EPSS:0.02%probability of exploitation in 30 daysPercentile:5.4th

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.

NVD Source

Technical Analysis

CVE-2026-21365 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 5.5.