CVE-2020-9014

Name: CVE-2020-9014
Creator: NVD / NIST
Published: 2021-02-05T19:15:12.117+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.37%

Last modified Jun 17, 2026

CVE-2020-9014 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. 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.. EPSS estimates a 0.37% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

0.37%

28.9th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Epson	Iprojection	<= 2.30

References

https://epson.com/Support/wa00935Patch, Vendor Advisory
https://epson.com/wireless-projector-appProduct
https://github.com/FULLSHADE/Kernel-exploitsPatch, Third Party Advisory
https://github.com/FULLSHADE/Kernel-exploits/tree/master/EMP_NSAU.sysPatch, Third Party Advisory
https://epson.com/Support/wa00935Patch, Vendor Advisory
https://epson.com/wireless-projector-appProduct
https://github.com/FULLSHADE/Kernel-exploitsPatch, Third Party Advisory
https://github.com/FULLSHADE/Kernel-exploits/tree/master/EMP_NSAU.sysPatch, Third Party Advisory

Timeline

Published: Feb 5, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-9014?

How severe is CVE-2020-9014?

CVE-2020-9014 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.37% probability of exploitation in the next 30 days.

How do I fix CVE-2020-9014?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-9014?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST