How severe is CVE-2026-21337?

CVE-2026-21337 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-21337 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-21337?

CVE-2026-21337 affects Adobe Substance 3d Designer. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-21337?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-21337 have an EU (EUVD) identifier?

Yes. CVE-2026-21337 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-6773.

When was CVE-2026-21337 published?

CVE-2026-21337 was published on 2026-02-10 and last updated on 2026-06-17.

CVE-2026-21337

CVE-2026-21337 is a medium-severity vulnerability in Adobe Substance 3d Designer with a CVSS 3.x base score of 5.5. 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-125.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
EPSS exploit prediction: 0% (5th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-6773
Weakness: CWE-125
Affected product: Adobe Substance 3d Designer
Published: 2026-02-10
Last modified: 2026-06-17

Description

Substance3D - Designer versions 15.1.0 and earlier are affected by an Out-of-bounds Read vulnerability that could lead to memory exposure. An attacker could leverage this vulnerability to access sensitive information stored in memory. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Frequently asked questions

What is CVE-2026-21337?: Substance3D - Designer versions 15.1.0 and earlier are affected by an Out-of-bounds Read vulnerability that could lead to memory exposure. An attacker could leverage this vulnerability to access sensitive information stored in memory. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
How severe is CVE-2026-21337?: CVE-2026-21337 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-21337 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-21337?: CVE-2026-21337 affects Adobe Substance 3d Designer. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-21337?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-21337 have an EU (EUVD) identifier?: Yes. CVE-2026-21337 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-6773.
When was CVE-2026-21337 published?: CVE-2026-21337 was published on 2026-02-10 and last updated on 2026-06-17.

References

https://helpx.adobe.com/security/products/substance3d_designer/apsb26-19.html

Affected products (1)

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

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