High severity · published Feb 10, 2026
CVE-2026-21344
Substance3D - Stager | Out-of-bounds Read (CWE-125)
7.8
CVSS
0.2%
EPSS
No
On KEV
Description
Substance3D - Stager versions 3.1.6 and earlier are affected by an out-of-bounds read vulnerability when parsing a crafted file, which could result in a read past the end of an allocated memory structure. An attacker could leverage this vulnerability to execute code in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 9% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SS
Substance3D - Stager · Adobe
through 3.1.6 · source: vendor
S3
Substance 3d Stager · Adobe
before 3.1.7 · source: NVD
Affected product
SS
Substance3D - Stager
Adobe
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