CVE-2020-10635Network attack vector

Model tampering via plaintext server downloads

Published Feb 24, 2022 · Updated Apr 16, 2025

Message-integrity failure in KUKA.Sim Pro 3.1 allows man-in-the-middle attackers to alter simulation models during download. The KUKA model server delivers requested models to the application's internet synchronization channel in plaintext, without transport integrity protection. An attacker positioned on the network path and user interaction with a model request are required; modification is limited to downloaded model data.

CVSS severity4.3
Medium
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Message-integrity failure in KUKA.Sim Pro 3.1 allows man-in-the-middle attackers to alter simulation models during download. The KUKA model server delivers requested models to the application's internet synchronization channel in plaintext, without transport integrity protection. An attacker positioned on the network path and user interaction with a model request are required; modification is limited to downloaded model data.

The record

CVE
CVE-2020-10635
Published
Feb 24, 2022
Updated
Apr 16, 2025
Vendor
KUKA
Product
KUKA.Sim Pro
Classifications
CWE-924, T1557
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 24, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 16, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

KUKA · KUKA.Sim Proversion=3.1

Published CVSS scores

4.3NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
4.3NVDAV:N/AC:M/Au:N/C:N/I:P/A:N
4.3ICS-CERTCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-924Improper Enforcement of Message Integrity During Transmission in a Communication Channel
T1557Adversary-in-the-Middle

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo