CVE-2021-47806: Dup Scout 13.5.28 contains an unquoted service path vulnerability in its Windows service configuration that al

Routine

HIGH 7.8DOWNGRADE

CVE-2021-47806 is a high-severity flaw (CVSS 7.8) affecting dup scout. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Dup Scout 13.5.28 contains an unquoted service path vulnerability in its Windows service configuration that allows local attackers to potentially execute arbitrary code. Attackers can exploit the unquoted path in 'C:\Program Files\Dup Scout Server\bin\dupscts.exe' to inject malicious executables and escalate privileges.

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	0.2% (top 85%)
CISA exploited list	No
Weakness	CWE-428
Published	2026-01-16
Last modified	2026-06-17

Publisher (CNA): VulnCheck · Vendor: flexense

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

Am I affected?

Timeline

2026-01-16 00:16 UTCPublished CVE record published
2026-06-17 04:18 UTCUpdated Record last modified

flexense dup scout DOWNGRADE

Affected: 13.5.28

Fixed in: no fixed release known

Safe to downgrade to: a release before 13.5.28

1. Check installed version

apt-cache policy dup-scout || rpm -q dup-scout || dup-scout --version

2. No fixed release: DOWNGRADE to a release before 13.5.28 (Debian / Ubuntu)

apt-cache madison dup-scout sudo apt install dup-scout=<VERSION_BEFORE_13.5.28> sudo apt-mark hold dup-scout

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

dnf --showduplicates list dup-scout sudo dnf downgrade dup-scout-<VERSION_BEFORE_13.5.28> sudo dnf versionlock add dup-scout

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-2021-47806?

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

Is CVE-2021-47806 being exploited?

CVE-2021-47806 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-2021-47806 affect?

CVE-2021-47806 affects dup scout. Severity is high (CVSS 7.8). Dup Scout 13.5.28 contains an unquoted service path vulnerability in its Windows service configuration that allows local attackers to potentially execute arbitrary code. Attackers can exploit the unquoted path in 'C:\Program Files\Dup Scout

How urgent is CVE-2021-47806?

Priority 36/100. High severity; Public exploit reference

Software pages

Windows vulnerabilities

References

← Back to latest CVEs