CVE-2020-10635: Simulation models for KUKA.Sim Pro version 3.1 are hosted by a server maintained by KUKA

Routine

MEDIUM 4.3DOWNGRADE

CVE-2020-10635 is a medium-severity flaw (CVSS 4.3) affecting sim pro. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Simulation models for KUKA.Sim Pro version 3.1 are hosted by a server maintained by KUKA. When these devices request a model, the server transmits the model in plaintext.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.3% (top 72%)
CISA exploited list	No
Weakness	CWE-924
Published	2022-02-24
Last modified	2026-06-17

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

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

Am I affected?

Timeline

2022-02-24 19:15 UTCPublished CVE record published
2026-06-17 02:48 UTCUpdated Record last modified

kuka sim pro DOWNGRADE

Affected: 3.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.1

1. Check installed version

apt-cache policy sim-pro || rpm -q sim-pro || sim-pro --version

2. No fixed release: DOWNGRADE to a release before 3.1 (Debian / Ubuntu)

apt-cache madison sim-pro sudo apt install sim-pro=<VERSION_BEFORE_3.1> sudo apt-mark hold sim-pro

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

dnf --showduplicates list sim-pro sudo dnf downgrade sim-pro-<VERSION_BEFORE_3.1> sudo dnf versionlock add sim-pro

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-2020-10635?

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

Is CVE-2020-10635 being exploited?

CVE-2020-10635 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-2020-10635 affect?

CVE-2020-10635 affects sim pro. Severity is medium (CVSS 4.3). Simulation models for KUKA.Sim Pro version 3.1 are hosted by a server maintained by KUKA. When these devices request a model, the server transmits the model in plaintext.

How urgent is CVE-2020-10635?

Priority 22/100. No elevated risk signals yet.

References

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