CVE-2020-10609: Grundfos CIM 500 v06.16.00 stores plaintext credentials, which may allow sensitive information to be read or a

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HIGH 7.5REMOTEDOWNGRADE

CVE-2020-10609 is a high-severity flaw (CVSS 7.5) affecting cim 500. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Grundfos CIM 500 v06.16.00 stores plaintext credentials, which may allow sensitive information to be read or allow modification to system settings by someone with access to the device.

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	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.5% (top 25%)
CISA exploited list	No
Weakness	CWE-256, CWE-522
Published	2020-07-27
Last modified	2026-06-17

Publisher (CNA): ICS-CERT · Vendor: grundfos

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

Am I affected?

Timeline

2020-07-27 19:15 UTCPublished CVE record published
2026-06-17 02:48 UTCUpdated Record last modified

grundfos cim 500 DOWNGRADE

Affected: 06.16.00

Fixed in: no fixed release known

Safe to downgrade to: a release before 06.16.00

1. Check installed version

apt-cache policy cim-500 || rpm -q cim-500 || cim-500 --version

2. No fixed release: DOWNGRADE to a release before 06.16.00 (Debian / Ubuntu)

apt-cache madison cim-500 sudo apt install cim-500=<VERSION_BEFORE_06.16.00> sudo apt-mark hold cim-500

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

dnf --showduplicates list cim-500 sudo dnf downgrade cim-500-<VERSION_BEFORE_06.16.00> sudo dnf versionlock add cim-500

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-2020-10609?

cim 500: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2020-10609 being exploited?

CVE-2020-10609 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-2020-10609 affect?

CVE-2020-10609 affects cim 500. Severity is high (CVSS 7.5). Grundfos CIM 500 v06.16.00 stores plaintext credentials, which may allow sensitive information to be read or allow modification to system settings by someone with access to the device.

How urgent is CVE-2020-10609?

Priority 50/100. High severity; Remotely exploitable, no login, no user action

References

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