CVE-2018-19522: DriverAgent 2.2015.7.14, which includes DrvAgent64.sys 1.0.0.1, allows a user to send an IOCTL (0x800020F4) wi

Routine

MEDIUM 5.5DOWNGRADE

CVE-2018-19522 is a medium-severity flaw (CVSS 5.5) affecting driveragent. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

DriverAgent 2.2015.7.14, which includes DrvAgent64.sys 1.0.0.1, allows a user to send an IOCTL (0x800020F4) with a buffer containing user defined content. The driver's subroutine will execute a wrmsr instruction with the user's buffer for partial input.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	5.5 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.4% (top 68%)
CISA exploited list	No
Weakness	CWE-20
Published	2018-12-18
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: driveragent

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

Am I affected?

Timeline

2018-12-18 16:29 UTCPublished CVE record published
2026-06-17 01:49 UTCUpdated Record last modified

driveragent driveragent DOWNGRADE

Affected: 2.2015.7.14

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.2015.7.14

1. Check installed version

apt-cache policy driveragent || rpm -q driveragent || driveragent --version

2. No fixed release: DOWNGRADE to a release before 2.2015.7.14 (Debian / Ubuntu)

apt-cache madison driveragent sudo apt install driveragent=<VERSION_BEFORE_2.2015.7.14> sudo apt-mark hold driveragent

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list driveragent sudo dnf downgrade driveragent-<VERSION_BEFORE_2.2015.7.14> sudo dnf versionlock add driveragent

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2018-19522?

driveragent: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2018-19522 being exploited?

CVE-2018-19522 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-2018-19522 affect?

CVE-2018-19522 affects driveragent. Severity is medium (CVSS 5.5). DriverAgent 2.2015.7.14, which includes DrvAgent64.sys 1.0.0.1, allows a user to send an IOCTL (0x800020F4) with a buffer containing user defined content. The driver's subroutine will execute a wrmsr instruction with the user's buffer for p

How urgent is CVE-2018-19522?

Priority 32/100. Public exploit reference

References

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