How severe is CVE-2020-9014?

CVE-2020-9014 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2020-9014 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-9014?

CVE-2020-9014 affects Epson Iprojection. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-9014?

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

When was CVE-2020-9014 published?

CVE-2020-9014 was published on 2021-02-05 and last updated on 2026-06-17.

CVE-2020-9014

CVE-2020-9014 is a medium-severity vulnerability in Epson Iprojection 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.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 2.1
EPSS exploit prediction: 0% (29th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Epson Iprojection
Published: 2021-02-05
Last modified: 2026-06-17

Description

In Epson iProjection v2.30, the driver file (EMP_NSAU.sys) allows local users to cause a denial of service (BSOD) via crafted input to the virtual audio device driver with IOCTL 0x9C402402, 0x9C402406, or 0x9C40240A. \Device\EMPNSAUIO and \DosDevices\EMPNSAU are similarly affected.

Frequently asked questions

What is CVE-2020-9014?: In Epson iProjection v2.30, the driver file (EMP_NSAU.sys) allows local users to cause a denial of service (BSOD) via crafted input to the virtual audio device driver with IOCTL 0x9C402402, 0x9C402406, or 0x9C40240A. \Device\EMPNSAUIO and \DosDevices\EMPNSAU are similarly affected.
How severe is CVE-2020-9014?: CVE-2020-9014 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2020-9014 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-9014?: CVE-2020-9014 affects Epson Iprojection. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-9014?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-9014 published?: CVE-2020-9014 was published on 2021-02-05 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:epson:iprojection:*:*:*:*:*:*:*:*

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