CVE-2020-16279: The Kommbox component in Rangee GmbH RangeeOS 8.0.4 is vulnerable to Remote Code Execution due to untrusted us

This week

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2020-16279 is a critical-severity flaw (CVSS 9.8) affecting rangeeos. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Kommbox component in Rangee GmbH RangeeOS 8.0.4 is vulnerable to Remote Code Execution due to untrusted user supplied input being passed to the command line without sanitization.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.3% (top 16%)
CISA exploited list	No
Weakness	CWE-78
Published	2020-08-20
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: rangee

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

Am I affected?

Timeline

2020-08-20 16:15 UTCPublished CVE record published
2026-06-17 02:57 UTCUpdated Record last modified

rangee rangeeos DOWNGRADE

Affected: 8.0.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 8.0.4

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 8.0.4 (Debian / Ubuntu)

apt-cache madison rangeeos sudo apt install rangeeos=<VERSION_BEFORE_8.0.4> sudo apt-mark hold rangeeos

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

dnf --showduplicates list rangeeos sudo dnf downgrade rangeeos-<VERSION_BEFORE_8.0.4> sudo dnf versionlock add rangeeos

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-2020-16279?

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

Is CVE-2020-16279 being exploited?

CVE-2020-16279 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-2020-16279 affect?

CVE-2020-16279 affects rangeeos. Severity is critical (CVSS 9.8). The Kommbox component in Rangee GmbH RangeeOS 8.0.4 is vulnerable to Remote Code Execution due to untrusted user supplied input being passed to the command line without sanitization.

How urgent is CVE-2020-16279?

Priority 60/100. Critical severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2020-16282 HIGH 8.8 MITIGATE In the default configuration of Rangee GmbH RangeeOS 8.0.4, all components are executed in the context of the
CVE-2020-16281 HIGH 7.8 DOWNGRADE The Kommbox component in Rangee GmbH RangeeOS 8.0.4 could allow a local authenticated attacker to escape from
CVE-2020-16280 MEDIUM 5.5 DOWNGRADE Multiple Rangee GmbH RangeeOS 8.0.4 modules store credentials in plaintext including credentials of users for

References

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