CVE-2018-7298: In /usr/local/etc/config/addons/mh/loopupd.sh on eQ-3 AG HomeMatic CCU2 2.29.22 devices, software update packa

This month

HIGH 8.1REMOTEMITIGATE

CVE-2018-7298 is a high-severity flaw (CVSS 8.1) affecting homematic central control unit ccu2 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In /usr/local/etc/config/addons/mh/loopupd.sh on eQ-3 AG HomeMatic CCU2 2.29.22 devices, software update packages are downloaded via the HTTP protocol, which does not provide any cryptographic protection of the downloaded contents. An attacker with a privileged network position (which could be obtained via DNS spoofing of www.meine-homematic.de or other approaches) can exploit this issue in order to provide arbitrary malicious firmware updates to

Why this priority

High severity
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	8.1 (High)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	0.8% (top 44%)
CISA exploited list	No
Weakness	CWE-319
Published	2018-02-22
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: eq-3

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

Am I affected?

Timeline

2018-02-22 19:29 UTCPublished CVE record published
2026-06-17 02:02 UTCUpdated Record last modified

eq-3 homematic central control unit ccu2 firmware MITIGATE

Affected: 2.29.22

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.29.22

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

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-2018-7298?

homematic central control unit ccu2 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2018-7298 being exploited?

CVE-2018-7298 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-2018-7298 affect?

CVE-2018-7298 affects homematic central control unit ccu2 firmware. Severity is high (CVSS 8.1). In /usr/local/etc/config/addons/mh/loopupd.sh on eQ-3 AG HomeMatic CCU2 2.29.22 devices, software update packages are downloaded via the HTTP protocol, which does not provide any cryptographic protection of the downloaded contents. An attac

How urgent is CVE-2018-7298?

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

Related CVEs

CVE-2018-7301 CRITICAL 9.8 MITIGATE eQ-3 AG HomeMatic CCU2 2.29.22 devices have an open XML-RPC port without authentication
CVE-2018-7299 HIGH 8.0 UPGRADE Remote Code Execution in the addon installation process in eQ-3 AG Homematic CCU2 2.29.2 and earlier allows au
CVE-2018-7297 CRITICAL 9.8 UPGRADE Remote Code Execution in the TCL script interpreter in eQ-3 AG Homematic CCU2 2.29.2 and earlier allows remote
CVE-2018-7296 MEDIUM 5.3 UPGRADE Directory Traversal / Arbitrary File Read in User.getLanguage method in eQ-3 AG Homematic CCU2 2.29.2 and earl

References

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