How severe is CVE-2026-4345?

CVE-2026-4345 has a CVSS 3.x base score of 7.1, 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 none.

Is CVE-2026-4345 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-4345?

CVE-2026-4345 affects Autodesk Fusion. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-4345?

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-2026-4345 have an EU (EUVD) identifier?

Yes. CVE-2026-4345 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-22274.

When was CVE-2026-4345 published?

CVE-2026-4345 was published on 2026-04-14 and last updated on 2026-06-17.

CVE-2026-4345

CVE-2026-4345 is a high-severity vulnerability in Autodesk Fusion with a CVSS 3.x base score of 7.1. 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-79.

Key facts

Severity: High (CVSS 3.x base score 7.1)
EPSS exploit prediction: 0% (10th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-22274
Weakness: CWE-79
Affected product: Autodesk Fusion
Published: 2026-04-14
Last modified: 2026-06-17

Description

A maliciously crafted HTML payload, stored in a design name and exported to CSV, can trigger a Stored Cross-site Scripting (XSS) vulnerability in the Autodesk Fusion desktop application. A malicious actor may leverage this vulnerability to read local files or execute arbitrary code in the context of the current process.

Frequently asked questions

What is CVE-2026-4345?: A maliciously crafted HTML payload, stored in a design name and exported to CSV, can trigger a Stored Cross-site Scripting (XSS) vulnerability in the Autodesk Fusion desktop application. A malicious actor may leverage this vulnerability to read local files or execute arbitrary code in the context of the current process.
How severe is CVE-2026-4345?: CVE-2026-4345 has a CVSS 3.x base score of 7.1, 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 none.
Is CVE-2026-4345 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-4345?: CVE-2026-4345 affects Autodesk Fusion. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-4345?: 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-2026-4345 have an EU (EUVD) identifier?: Yes. CVE-2026-4345 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-22274.
When was CVE-2026-4345 published?: CVE-2026-4345 was published on 2026-04-14 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:autodesk:fusion:*:*:*:*:*:*:*:*

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