CVE-2020-25106: Nanosystems SupRemo 4.1.3.2348 allows attackers to obtain LocalSystem access because File Manager can be used

This month

HIGH 7.8DOWNGRADE

CVE-2020-25106 is a high-severity flaw (CVSS 7.8) affecting supremo. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Nanosystems SupRemo 4.1.3.2348 allows attackers to obtain LocalSystem access because File Manager can be used to rename Supremo.exe and then upload a Trojan horse with the Supremo.exe filename.

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	None
User interaction	Required
EPSS exploit chance	1.5% (top 26%)
CISA exploited list	No
Weakness	CWE-269
Published	2020-12-22
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: supremocontrol

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

Am I affected?

Timeline

2020-12-22 18:15 UTCPublished CVE record published
2026-06-17 03:06 UTCUpdated Record last modified

supremocontrol supremo DOWNGRADE

Affected: 4.1.3.2348

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.1.3.2348

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 4.1.3.2348 (Debian / Ubuntu)

apt-cache madison supremo sudo apt install supremo=<VERSION_BEFORE_4.1.3.2348> sudo apt-mark hold supremo

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

dnf --showduplicates list supremo sudo dnf downgrade supremo-<VERSION_BEFORE_4.1.3.2348> sudo dnf versionlock add supremo

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-2020-25106?

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

Is CVE-2020-25106 being exploited?

CVE-2020-25106 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-2020-25106 affect?

CVE-2020-25106 affects supremo. Severity is high (CVSS 7.8). Nanosystems SupRemo 4.1.3.2348 allows attackers to obtain LocalSystem access because File Manager can be used to rename Supremo.exe and then upload a Trojan horse with the Supremo.exe filename.

How urgent is CVE-2020-25106?

Priority 51/100. High severity; Public exploit reference

References

← Back to latest CVEs