CVE-2021-28810: If exploited, this vulnerability allows an attacker to access resources which are not otherwise accessible wit

Q: How do I fix CVE-2021-28810?

roon server: upgrade to 2021-05-18. Exact commands for each OS are on this page.

Q: Is CVE-2021-28810 being exploited?

CVE-2021-28810 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-2021-28810 affect?

CVE-2021-28810 affects roon server. Severity is high (CVSS 7.5). If exploited, this vulnerability allows an attacker to access resources which are not otherwise accessible without proper authentication. Roon Labs has already fixed this vulnerability in the following versions: Roon Server 2021-05-18 and l

Q: How urgent is CVE-2021-28810?

Priority 47/100. High severity; Remotely exploitable, no login, no user action

This month

HIGH 7.5REMOTEUPGRADE

CVE-2021-28810 is a high-severity flaw (CVSS 7.5) affecting roon server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

If exploited, this vulnerability allows an attacker to access resources which are not otherwise accessible without proper authentication. Roon Labs has already fixed this vulnerability in the following versions: Roon Server 2021-05-18 and later

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.0% (top 36%)
CISA exploited list	No
Weakness	CWE-290
Published	2021-06-08
Last modified	2026-06-17

Publisher (CNA): QNAP Systems, Inc. · Vendor: qnap

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

Am I affected?

Timeline

2021-06-08 03:15 UTCPublished CVE record published
2026-06-17 03:46 UTCUpdated Record last modified

qnap roon server UPGRADE

Affected: < 2021-05-18

Fixed in: 2021-05-18

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy roon-server || rpm -q roon-server || roon-server --version

2. UPGRADE to 2021-05-18 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade roon-server

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade roon-server

Note

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

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-2021-28810?

roon server: upgrade to 2021-05-18. Exact commands for each OS are on this page.

Is CVE-2021-28810 being exploited?

CVE-2021-28810 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-2021-28810 affect?

CVE-2021-28810 affects roon server. Severity is high (CVSS 7.5). If exploited, this vulnerability allows an attacker to access resources which are not otherwise accessible without proper authentication. Roon Labs has already fixed this vulnerability in the following versions: Roon Server 2021-05-18 and l

How urgent is CVE-2021-28810?

Priority 47/100. High severity; Remotely exploitable, no login, no user action

Software pages

QNAP vulnerabilities

Related CVEs

CVE-2021-28811 HIGH 7.2 UPGRADE If exploited, this command injection vulnerability could allow remote attackers to run arbitrary commands

References

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