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CVE-2026-21308— Substance3D - Designer | Out-of-bounds Read (CWE-125)

Quick assessment

Affected
Adobe Adobe Substance 3D Designer
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 Designer是美国奥多比（Adobe）公司的一个纹理与材质创作软件。 Adobe Substance3D Designer 15.0.3及之前版本存在缓冲区错误漏洞，该漏洞源于越界读取，可能导致内存暴露和信息泄露。

CVSS 5.5 · Medium EPSS 0.18% · P7

Possible ATT&CK Techniques 1 AI

T1213 · Data from Information Repositories

Affected Version Matrix 2

VendorProduct Version RangeStatus
Adobe Adobe Substance 3D Designer ≤ 15.0.3 affected
15.1.0 unaffected
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I. Basic Information for CVE-2026-21308

Vulnerability Information
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Vulnerability Title
Substance3D - Designer | Out-of-bounds Read (CWE-125)
Source: CVE Program / CVE List V5
Vulnerability Description
Substance3D - Designer versions 15.0.3 and earlier are affected by an Out-of-bounds Read vulnerability that could lead to memory exposure. An attacker could leverage this vulnerability to disclose sensitive information stored in memory. 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:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5
Vulnerability Title
Adobe Substance3D Designer 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Adobe Substance3D Designer是美国奥多比（Adobe）公司的一个纹理与材质创作软件。 Adobe Substance3D Designer 15.0.3及之前版本存在缓冲区错误漏洞，该漏洞源于越界读取，可能导致内存暴露和信息泄露。
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 Adobe Substance 3D Designer 0 ~ 15.0.3 -

II. Public POCs for CVE-2026-21308

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III. Intelligence Information for CVE-2026-21308

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Vendor Advisories for CVE-2026-21308 (1)

Same Patch Batch · Adobe · 2026-01-13 · 25 CVEs total

CVE-2026-21272 8.6 HIGH Dreamweaver Desktop | Improper Input Validation (CWE-20)
CVE-2026-21271 8.6 HIGH Dreamweaver Desktop | Improper Input Validation (CWE-20)
CVE-2026-21267 8.6 HIGH Dreamweaver Desktop | Improper Neutralization of Special Elements used in an OS Command ('
CVE-2026-21280 8.6 HIGH Illustrator | Untrusted Search Path (CWE-426)
CVE-2026-21268 8.6 HIGH Dreamweaver Desktop | Improper Input Validation (CWE-20)
CVE-2026-21281 7.8 HIGH InCopy | Heap-based Buffer Overflow (CWE-122)
CVE-2026-21299 7.8 HIGH Substance3D - Modeler | Out-of-bounds Write (CWE-787)
CVE-2026-21298 7.8 HIGH Substance3D - Modeler | Out-of-bounds Write (CWE-787)
CVE-2026-21307 7.8 HIGH Substance3D - Designer | Out-of-bounds Write (CWE-787)
CVE-2026-21306 7.8 HIGH Substance3D - Sampler | Out-of-bounds Write (CWE-787)
CVE-2026-21287 7.8 HIGH Substance3D - Stager | Use After Free (CWE-416)
CVE-2026-21305 7.8 HIGH Substance3D - Painter | Out-of-bounds Write (CWE-787)
CVE-2026-21283 7.8 HIGH Bridge | Heap-based Buffer Overflow (CWE-122)
CVE-2026-21304 7.8 HIGH InDesign Desktop | Heap-based Buffer Overflow (CWE-122)
CVE-2026-21277 7.8 HIGH InDesign Desktop | Heap-based Buffer Overflow (CWE-122)
CVE-2026-21275 7.8 HIGH InDesign Desktop | Access of Uninitialized Pointer (CWE-824)
CVE-2026-21276 7.8 HIGH InDesign Desktop | Access of Uninitialized Pointer (CWE-824)
CVE-2026-21274 7.8 HIGH Dreamweaver Desktop | Incorrect Authorization (CWE-863)
CVE-2026-21288 5.5 MEDIUM Illustrator | NULL Pointer Dereference (CWE-476)
CVE-2026-21278 5.5 MEDIUM InDesign Desktop | Out-of-bounds Read (CWE-125)

Showing top 20 of 25 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Adobe Substance 3D Designer
Same vendor: Adobe
Same weakness: CWE-125

V. Comments for CVE-2026-21308

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