CVE-2021-43460: An Unquoted Service Path vulnerability exists in System Explorer 7.0.0 via via a specially crafted file in the

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HIGH 7.8DOWNGRADE

CVE-2021-43460 is a high-severity flaw (CVSS 7.8) affecting system explorer. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An Unquoted Service Path vulnerability exists in System Explorer 7.0.0 via via a specially crafted file in the SystemExplorerHelpService service executable path.

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	0.5% (top 60%)
CISA exploited list	No
Weakness	CWE-428
Published	2022-04-04
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: systemexplorer

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

Am I affected?

Timeline

2022-04-04 16:15 UTCPublished CVE record published
2026-06-17 04:11 UTCUpdated Record last modified

systemexplorer system explorer DOWNGRADE

Affected: 7.0.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 7.0.0

1. Check installed version

apt-cache policy system-explorer || rpm -q system-explorer || system-explorer --version

2. No fixed release: DOWNGRADE to a release before 7.0.0 (Debian / Ubuntu)

apt-cache madison system-explorer sudo apt install system-explorer=<VERSION_BEFORE_7.0.0> sudo apt-mark hold system-explorer

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

dnf --showduplicates list system-explorer sudo dnf downgrade system-explorer-<VERSION_BEFORE_7.0.0> sudo dnf versionlock add system-explorer

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-2021-43460?

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

Is CVE-2021-43460 being exploited?

CVE-2021-43460 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-2021-43460 affect?

CVE-2021-43460 affects system explorer. Severity is high (CVSS 7.8). An Unquoted Service Path vulnerability exists in System Explorer 7.0.0 via via a specially crafted file in the SystemExplorerHelpService service executable path.

How urgent is CVE-2021-43460?

Priority 42/100. High severity; Public exploit reference

References

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