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CVE-2026-21341— Substance3D - Stager | Out-of-bounds Write (CWE-787)

Quick assessment

Affected
Adobe Substance3D - Stager
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Adobe Substance3D Stager是美国奥多比（Adobe）公司的一款3D场景的布景与渲染软件。 Adobe Substance3D Stager 3.1.6及之前版本存在缓冲区错误漏洞，该漏洞源于越界写入，可能导致在当前用户环境中执行任意代码。

CVSS 7.8 · High EPSS 0.14% · P3
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I. Basic Information for CVE-2026-21341

Vulnerability Information
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Vulnerability Title
Substance3D - Stager | Out-of-bounds Write (CWE-787)
Source: CVE Program / CVE List V5
Vulnerability Description
Substance3D - Stager versions 3.1.6 and earlier are affected by an out-of-bounds write vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存写
Source: CVE Program / CVE List V5
Vulnerability Title
Adobe Substance3D Stager 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Adobe Substance3D Stager是美国奥多比（Adobe）公司的一款3D场景的布景与渲染软件。 Adobe Substance3D Stager 3.1.6及之前版本存在缓冲区错误漏洞，该漏洞源于越界写入，可能导致在当前用户环境中执行任意代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Adobe Substance3D - Stager 0 ~ 3.1.6 -

II. Public POCs for CVE-2026-21341

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III. Intelligence Information for CVE-2026-21341

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Vendor Advisories for CVE-2026-21341 (1)

Same Patch Batch · Adobe · 2026-02-10 · 44 CVEs total

CVE-2026-21357 7.8 HIGH InDesign Desktop | Heap-based Buffer Overflow (CWE-122)
CVE-2026-21343 7.8 HIGH Substance3D - Stager | Out-of-bounds Read (CWE-125)
CVE-2026-21346 7.8 HIGH Bridge | Out-of-bounds Write (CWE-787)
CVE-2026-21347 7.8 HIGH Bridge | Integer Overflow or Wraparound (CWE-190)
CVE-2026-21344 7.8 HIGH Substance3D - Stager | Out-of-bounds Read (CWE-125)
CVE-2026-21353 7.8 HIGH DNG SDK | Integer Overflow or Wraparound (CWE-190)
CVE-2026-21321 7.8 HIGH After Effects | Integer Overflow or Wraparound (CWE-190)
CVE-2026-21351 7.8 HIGH After Effects | Use After Free (CWE-416)
CVE-2026-21320 7.8 HIGH After Effects | Use After Free (CWE-416)
CVE-2026-21327 7.8 HIGH After Effects | Out-of-bounds Write (CWE-787)
CVE-2026-21334 7.8 HIGH Substance3D - Designer | Out-of-bounds Write (CWE-787)
CVE-2026-21329 7.8 HIGH After Effects | Use After Free (CWE-416)
CVE-2026-21323 7.8 HIGH After Effects | Use After Free (CWE-416)
CVE-2026-21324 7.8 HIGH After Effects | Out-of-bounds Read (CWE-125)
CVE-2026-21326 7.8 HIGH After Effects | Use After Free (CWE-416)
CVE-2026-21322 7.8 HIGH After Effects | Out-of-bounds Read (CWE-125)
CVE-2026-21318 7.8 HIGH After Effects | Out-of-bounds Write (CWE-787)
CVE-2026-21328 7.8 HIGH After Effects | Out-of-bounds Write (CWE-787)
CVE-2026-21325 7.8 HIGH After Effects | Out-of-bounds Read (CWE-125)
CVE-2026-21330 7.8 HIGH After Effects | Access of Resource Using Incompatible Type ('Type Confusion') (CWE-843)

Showing top 20 of 44 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Substance3D - Stager
Same vendor: Adobe
Same weakness: CWE-787

V. Comments for CVE-2026-21341

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