NULL pointer dereference in Epson Iprojection
CVE-2020-9453
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.004 (30.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 30.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- epson.com (Product)
- github.com/FULLSHADE/Kernel-exploits (Patch, Third Party Advisory)
- github.com/FULLSHADE/Kernel-exploits/tree/master/EMP_MPAU.sys (Patch, Third Party Advisory)
- epson.com/Support/wa00936 (Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-9453?
- CVE-2020-9453 is a medium-severity vulnerability in Epson Iprojection, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2021-02-05.
- How severe is CVE-2020-9453?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2020-9453 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.