CVE-2019-18845: The MsIo64.sys and MsIo32.sys drivers in Patriot Viper RGB before 1.1 allow local users (including low integri

Routine

HIGH 7.1MITIGATE

CVE-2019-18845 is a high-severity flaw (CVSS 7.1) affecting viper rgb firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The MsIo64.sys and MsIo32.sys drivers in Patriot Viper RGB before 1.1 allow local users (including low integrity processes) to read and write to arbitrary memory locations, and consequently gain NT AUTHORITY\SYSTEM privileges, by mapping \Device\PhysicalMemory into the calling process via ZwOpenSection and ZwMapViewOfSection.

Why this priority

High severity

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.1 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.4% (top 65%)
CISA exploited list	No
Weakness	CWE-269
Published	2019-11-09
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: patriotmemory

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2019-11-09 18:15 UTCPublished CVE record published
2026-06-17 02:25 UTCUpdated Record last modified

patriotmemory viper rgb firmware MITIGATE

Affected: 1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2019-18845?

viper rgb firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2019-18845 being exploited?

CVE-2019-18845 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2019-18845 affect?

CVE-2019-18845 affects viper rgb firmware. Severity is high (CVSS 7.1). The MsIo64.sys and MsIo32.sys drivers in Patriot Viper RGB before 1.1 allow local users (including low integrity processes) to read and write to arbitrary memory locations, and consequently gain NT AUTHORITY\SYSTEM privileges, by mapping \D

How urgent is CVE-2019-18845?

Priority 34/100. High severity

Related CVEs

CVE-2020-9756 HIGH 7.8 UPGRADE Patriot Viper RGB Driver 1.1 and prior exposes IOCTL and allows insufficient access control

References

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