CVE-2020-9453

Name: CVE-2020-9453
Creator: NVD / NIST
Published: 2021-02-05T20:15:13.23+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.39%

Last modified Jun 17, 2026

CVE-2020-9453 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. In Epson iProjection v2.30, the driver file EMP_MPAU.sys allows local users to cause a denial of service (BSOD) or possibly have unspecified other impact because of not validating input values from IOCtl 0x9C402406 and IOCtl 0x9C40240A. (0x9C402402 has only a NULL pointer dereference.) This affects \Device\EMPMPAUIO and \DosDevices\EMPMPAU.. EPSS estimates a 0.39% chance of exploitation in the next 30 days.

Description

In Epson iProjection v2.30, the driver file EMP_MPAU.sys allows local users to cause a denial of service (BSOD) or possibly have unspecified other impact because of not validating input values from IOCtl 0x9C402406 and IOCtl 0x9C40240A. (0x9C402402 has only a NULL pointer dereference.) This affects \Device\EMPMPAUIO and \DosDevices\EMPMPAU.

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

0.39%

30.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-476

Affected Software

Vendor	Product	Versions
Epson	Iprojection	<= 2.30

References

https://epson.comProduct
https://epson.com/Support/wa00936Patch, Vendor Advisory
https://github.com/FULLSHADE/Kernel-exploitsPatch, Third Party Advisory
https://github.com/FULLSHADE/Kernel-exploits/tree/master/EMP_MPAU.sysPatch, Third Party Advisory
https://epson.comProduct
https://epson.com/Support/wa00936Patch, Vendor Advisory
https://github.com/FULLSHADE/Kernel-exploitsPatch, Third Party Advisory
https://github.com/FULLSHADE/Kernel-exploits/tree/master/EMP_MPAU.sysPatch, Third Party Advisory

Timeline

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

Frequently Asked Questions

What is CVE-2020-9453?

How severe is CVE-2020-9453?

CVE-2020-9453 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.39% probability of exploitation in the next 30 days.

How do I fix CVE-2020-9453?

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-2020-9453?

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

Scan your code now

Source: NVD / NIST