CVE-2022-37415: The Uniwill SparkIO.sys driver 1.0 is vulnerable to a stack-based buffer overflow via IOCTL 0x40002008.

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HIGH 7.8DOWNGRADE

CVE-2022-37415 is a high-severity flaw (CVSS 7.8) affecting sparkio.sys. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Uniwill SparkIO.sys driver 1.0 is vulnerable to a stack-based buffer overflow via IOCTL 0x40002008.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.4% (top 69%)
CISA exploited list	No
Weakness	CWE-787
Published	2022-08-05
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: uniwill

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

Am I affected?

Timeline

2022-08-05 04:15 UTCPublished CVE record published
2026-06-17 04:55 UTCUpdated Record last modified

uniwill sparkio.sys DOWNGRADE

Affected: 1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0

1. Check installed version

apt-cache policy sparkio.sys || rpm -q sparkio.sys || sparkio.sys --version

2. No fixed release: DOWNGRADE to a release before 1.0 (Debian / Ubuntu)

apt-cache madison sparkio.sys sudo apt install sparkio.sys=<VERSION_BEFORE_1.0> sudo apt-mark hold sparkio.sys

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

dnf --showduplicates list sparkio.sys sudo dnf downgrade sparkio.sys-<VERSION_BEFORE_1.0> sudo dnf versionlock add sparkio.sys

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-2022-37415?

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

Is CVE-2022-37415 being exploited?

CVE-2022-37415 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-2022-37415 affect?

CVE-2022-37415 affects sparkio.sys. Severity is high (CVSS 7.8). The Uniwill SparkIO.sys driver 1.0 is vulnerable to a stack-based buffer overflow via IOCTL 0x40002008.

How urgent is CVE-2022-37415?

Priority 40/100. High severity; Public exploit reference

References

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