How severe is CVE-2017-12939?

CVE-2017-12939 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2017-12939 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-12939?

CVE-2017-12939 primarily affects Unity3d Unity Editor. In total, 14 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-12939?

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

When was CVE-2017-12939 published?

CVE-2017-12939 was published on 2017-08-18 and last updated on 2026-06-17.

CVE-2017-12939

CVE-2017-12939 is a critical-severity vulnerability in Unity3d Unity Editor with a CVSS 3.x base score of 9.8. 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-20.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 5% (91st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Unity3d Unity Editor
Published: 2017-08-18
Last modified: 2026-06-17

Description

A Remote Code Execution vulnerability was identified in all Windows versions of Unity Editor, e.g., before 5.3.8p2, 5.4.x before 5.4.5p5, 5.5.x before 5.5.4p3, 5.6.x before 5.6.3p1, and 2017.x before 2017.1.0p4.

Frequently asked questions

What is CVE-2017-12939?: A Remote Code Execution vulnerability was identified in all Windows versions of Unity Editor, e.g., before 5.3.8p2, 5.4.x before 5.4.5p5, 5.5.x before 5.5.4p3, 5.6.x before 5.6.3p1, and 2017.x before 2017.1.0p4.
How severe is CVE-2017-12939?: CVE-2017-12939 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2017-12939 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-12939?: CVE-2017-12939 primarily affects Unity3d Unity Editor. In total, 14 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-12939?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2017-12939 published?: CVE-2017-12939 was published on 2017-08-18 and last updated on 2026-06-17.

References

Affected products (14)

cpe:2.3:a:unity3d:unity_editor:5.3.8:*:*:*:*:*:*:*
cpe:2.3:a:unity3d:unity_editor:5.4.0:*:*:*:*:*:*:*
cpe:2.3:a:unity3d:unity_editor:5.4.1:*:*:*:*:*:*:*
cpe:2.3:a:unity3d:unity_editor:5.4.2:*:*:*:*:*:*:*
cpe:2.3:a:unity3d:unity_editor:5.4.3:*:*:*:*:*:*:*
cpe:2.3:a:unity3d:unity_editor:5.4.4:*:*:*:*:*:*:*
cpe:2.3:a:unity3d:unity_editor:5.5.0:*:*:*:*:*:*:*
cpe:2.3:a:unity3d:unity_editor:5.5.1:*:*:*:*:*:*:*
cpe:2.3:a:unity3d:unity_editor:5.5.2:*:*:*:*:*:*:*
cpe:2.3:a:unity3d:unity_editor:5.5.3:*:*:*:*:*:*:*
cpe:2.3:a:unity3d:unity_editor:5.6.0:*:*:*:*:*:*:*
cpe:2.3:a:unity3d:unity_editor:5.6.1:*:*:*:*:*:*:*
cpe:2.3:a:unity3d:unity_editor:5.6.2:*:*:*:*:*:*:*
cpe:2.3:a:unity3d:unity_editor:2017.1.0:*:*:*:*:*:*:*

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