How severe is CVE-2025-21138?

CVE-2025-21138 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-21138 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-21138?

CVE-2025-21138 affects Adobe Substance 3d Designer. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-21138?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-21138 have an EU (EUVD) identifier?

Yes. CVE-2025-21138 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-2245.

When was CVE-2025-21138 published?

CVE-2025-21138 was published on 2025-01-14 and last updated on 2026-06-17.

CVE-2025-21138

CVE-2025-21138 is a high-severity vulnerability in Adobe Substance 3d Designer with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.

Key facts

Severity: High (CVSS 3.x base score 7.8)
EPSS exploit prediction: 0% (11th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-2245
Weakness: CWE-787
Affected product: Adobe Substance 3d Designer
Published: 2025-01-14
Last modified: 2026-06-17

Description

Substance3D - Designer versions 14.0 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.

Frequently asked questions

What is CVE-2025-21138?: Substance3D - Designer versions 14.0 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.
How severe is CVE-2025-21138?: CVE-2025-21138 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-21138 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-21138?: CVE-2025-21138 affects Adobe Substance 3d Designer. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-21138?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-21138 have an EU (EUVD) identifier?: Yes. CVE-2025-21138 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-2245.
When was CVE-2025-21138 published?: CVE-2025-21138 was published on 2025-01-14 and last updated on 2026-06-17.

References

https://helpx.adobe.com/security/products/substance3d_designer/apsb25-06.html

Affected products (1)

cpe:2.3:a:adobe:substance_3d_designer:*:*:*:*:*:*:*:*

More vulnerabilities in Adobe Substance 3d Designer

CVE-2026-34684 — High (CVSS 7.8): Substance3D - Designer versions 15.1.0 and earlier are affected by an out-of-bounds write vulnerability that could…
CVE-2026-34683 — High (CVSS 7.8): Substance3D - Designer versions 15.1.0 and earlier are affected by an out-of-bounds write vulnerability that could…
CVE-2026-34682 — High (CVSS 7.8): Substance3D - Designer versions 15.1.0 and earlier are affected by an out-of-bounds write vulnerability that could…
CVE-2026-34681 — High (CVSS 7.8): Substance3D - Designer versions 15.1.0 and earlier are affected by an out-of-bounds write vulnerability that could…
CVE-2026-21335 — High (CVSS 7.8): Substance3D - Designer versions 15.1.0 and earlier are affected by an out-of-bounds write vulnerability that could…
CVE-2026-21334 — High (CVSS 7.8): Substance3D - Designer versions 15.1.0 and earlier are affected by an out-of-bounds write vulnerability that could…

All CVEs affecting Adobe Substance 3d Designer →

Other CWE-787 (Out-of-bounds Write) vulnerabilities

CVE-2026-42369 — Critical (CVSS 10.0): GV-VMS V20 is a Video Monitoring Software used to gather the feeds of many surveillance cameras and manage other…
CVE-2026-4746 — Critical (CVSS 10.0): Out-of-bounds Write vulnerability in timeplus-io proton (base/poco/Foundation/src‎ modules). This vulnerability is…
CVE-2025-43300 — Critical (CVSS 10.0): An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 15.8.5 and iPadOS…
CVE-2025-24201 — Critical (CVSS 10.0): An out-of-bounds write issue was addressed with improved checks to prevent unauthorized actions. This issue is fixed in…
CVE-2024-42479 — Critical (CVSS 10.0): llama.cpp provides LLM inference in C/C++. The unsafe `data` pointer member in the `rpc_tensor` structure can cause…
CVE-2024-39791 — Critical (CVSS 10.0): Stack-based buffer overflow vulnerabilities affecting Vonets industrial wifi bridge relays and wifi bridge…

Browse all CWE-787 (Out-of-bounds Write) vulnerabilities →