CVE-2022-40673: KDiskMark before 3.1.0 lacks authorization checking for D-Bus methods such as Helper::flushPageCache.

Q: How do I fix CVE-2022-40673?

kdiskmark: upgrade to 3.1.0; fedora: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Q: Is CVE-2022-40673 being exploited?

CVE-2022-40673 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2022-40673 affect?

CVE-2022-40673 affects kdiskmark, fedora. Severity is high (CVSS 7.8). KDiskMark before 3.1.0 lacks authorization checking for D-Bus methods such as Helper::flushPageCache.

Q: How urgent is CVE-2022-40673?

Priority 40/100. High severity; Public exploit reference

This month

HIGH 7.8UPGRADEMITIGATE

CVE-2022-40673 is a high-severity flaw (CVSS 7.8) affecting kdiskmark, fedora. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

KDiskMark before 3.1.0 lacks authorization checking for D-Bus methods such as Helper::flushPageCache.

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

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-862
Published	2022-09-14
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: fedoraproject · kdiskmark project

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

Am I affected?

Timeline

2022-09-14 11:15 UTCPublished CVE record published
2026-06-17 05:01 UTCUpdated Record last modified

kdiskmark project kdiskmark UPGRADE

Affected: < 3.1.0

Fixed in: 3.1.0

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 3.1.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade kdiskmark

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade kdiskmark

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

fedoraproject fedora MITIGATE

Affected: 36

Fixed in: no fixed release known

Safe to downgrade to: a release before 36

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-2022-40673?

kdiskmark: upgrade to 3.1.0; fedora: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2022-40673 being exploited?

CVE-2022-40673 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-2022-40673 affect?

CVE-2022-40673 affects kdiskmark, fedora. Severity is high (CVSS 7.8). KDiskMark before 3.1.0 lacks authorization checking for D-Bus methods such as Helper::flushPageCache.

How urgent is CVE-2022-40673?

Priority 40/100. High severity; Public exploit reference

References

← Back to latest CVEs