SB2026052158 - Multiple vulnerabilities in Adobe Substance 3D Designer



SB2026052158 - Multiple vulnerabilities in Adobe Substance 3D Designer

Published: May 21, 2026

Security Bulletin ID SB2026052158
CSH Severity
High
Patch available
YES
Number of vulnerabilities 5
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 80% Medium 20%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 5 vulnerabilities.


1) Server-Side Request Forgery (SSRF) (CVE-ID: CVE-2026-34664)

CWE-ID: CWE-918 - Server-Side Request Forgery (SSRF)

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to read arbitrary files.

The vulnerability exists due to server-side request forgery in Adobe Substance 3D Designer when processing attacker-controlled content. A remote attacker can supply crafted input to trigger arbitrary file system read.

User interaction is required to open or process crafted content.


2) Out-of-bounds write (CVE-ID: CVE-2026-34681)

CWE-ID: CWE-787 - Out-of-bounds write

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber


The vulnerability allows a remote attacker to execute arbitrary code.

The vulnerability exists due to out-of-bounds write in Adobe Substance 3D Designer when parsing crafted content. A remote attacker can provide crafted input to execute arbitrary code.

User interaction is required to open or process crafted content.


3) Out-of-bounds write (CVE-ID: CVE-2026-34682)

CWE-ID: CWE-787 - Out-of-bounds write

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber


The vulnerability allows a remote attacker to execute arbitrary code.

The vulnerability exists due to out-of-bounds write in Adobe Substance 3D Designer when parsing crafted content. A remote attacker can provide crafted input to execute arbitrary code.

User interaction is required to open or process crafted content.


4) Out-of-bounds write (CVE-ID: CVE-2026-34683)

CWE-ID: CWE-787 - Out-of-bounds write

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber


The vulnerability allows a remote attacker to execute arbitrary code.

The vulnerability exists due to out-of-bounds write in Adobe Substance 3D Designer when parsing crafted content. A remote attacker can provide crafted input to execute arbitrary code.

User interaction is required to open or process crafted content.


5) Out-of-bounds write (CVE-ID: CVE-2026-34684)

CWE-ID: CWE-787 - Out-of-bounds write

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber


The vulnerability allows a remote attacker to execute arbitrary code.

The vulnerability exists due to out-of-bounds write in Adobe Substance 3D Designer when parsing crafted content. A remote attacker can provide crafted input to execute arbitrary code.

User interaction is required to open or process crafted content.


Remediation

Install update from vendor's website.