high
7.5
CWE
788 119
Advisory Published
Updated

CVE-2021-25660: Buffer Overflow

First published: Wed May 12 2021(Updated: )

A vulnerability has been identified in SIMATIC HMI Comfort Outdoor Panels V15 7\" & 15\" (incl. SIPLUS variants) (All versions < V15.1 Update 6), SIMATIC HMI Comfort Outdoor Panels V16 7\" & 15\" (incl. SIPLUS variants) (All versions < V16 Update 4), SIMATIC HMI Comfort Panels V15 4\" - 22\" (incl. SIPLUS variants) (All versions < V15.1 Update 6), SIMATIC HMI Comfort Panels V16 4\" - 22\" (incl. SIPLUS variants) (All versions < V16 Update 4), SIMATIC HMI KTP Mobile Panels V15 KTP400F, KTP700, KTP700F, KTP900 and KTP900F (All versions < V15.1 Update 6), SIMATIC HMI KTP Mobile Panels V16 KTP400F, KTP700, KTP700F, KTP900 and KTP900F (All versions < V16 Update 4), SIMATIC WinCC Runtime Advanced V15 (All versions < V15.1 Update 6), SIMATIC WinCC Runtime Advanced V16 (All versions < V16 Update 4). SmartVNC has an out-of-bounds memory access vulnerability that could be triggered on the server side when sending data from the client, which could result in a Denial-of-Service condition.

Credit: productcert@siemens.com

Affected SoftwareAffected VersionHow to fix
siemens SIMATIC HMI Comfort Outdoor Panels 7\" firmware<16
siemens SIMATIC HMI Comfort Outdoor Panels 7\" firmware=16
siemens SIMATIC HMI Comfort Outdoor Panels 7\" firmware=16-update1
siemens SIMATIC HMI Comfort Outdoor Panels 7\" firmware=16-update2
siemens SIMATIC HMI Comfort Outdoor Panels 7\" firmware=16-update3
siemens SIMATIC HMI Comfort Outdoor Panels 7\"
siemens SIMATIC HMI Comfort Outdoor Panels 15\" firmware<16
siemens SIMATIC HMI Comfort Outdoor Panels 15\" firmware=16
siemens SIMATIC HMI Comfort Outdoor Panels 15\" firmware=16
siemens SIMATIC HMI Comfort Outdoor Panels 15\" firmware=16-update1
siemens SIMATIC HMI Comfort Outdoor Panels 15\" firmware=16-update2
siemens SIMATIC HMI Comfort Outdoor Panels 15\" firmware=16-update3
siemens SIMATIC HMI Comfort Outdoor Panels 15\"
siemens SIMATIC HMI Comfort Panels 4\" firmware<16
siemens SIMATIC HMI Comfort Panels 4\" firmware=16
siemens SIMATIC HMI Comfort Panels 4\" firmware=16-update1
siemens SIMATIC HMI Comfort Panels 4\" firmware=16-update2
siemens SIMATIC HMI Comfort Panels 4\" firmware=16-update3
siemens SIMATIC HMI Comfort Panels 4\"
siemens SIMATIC HMI Comfort Panels 22\" firmware<16
siemens SIMATIC HMI Comfort Panels 22\" firmware=16
siemens SIMATIC HMI Comfort Panels 22\" firmware=16-update1
siemens SIMATIC HMI Comfort Panels 22\" firmware=16-update2
siemens SIMATIC HMI Comfort Panels 22\" firmware=16-update3
siemens SIMATIC HMI Comfort Panels 22\"
Siemens Simatic Hmi Ktp Mobile Panels Ktp400f Firmware<16
Siemens Simatic Hmi Ktp Mobile Panels Ktp400f Firmware=16
Siemens Simatic Hmi Ktp Mobile Panels Ktp400f Firmware=16-update1
Siemens Simatic Hmi Ktp Mobile Panels Ktp400f Firmware=16-update2
Siemens Simatic Hmi Ktp Mobile Panels Ktp400f Firmware=16-update3
Siemens SIMATIC HMI Mobile Panels
Siemens Simatic Hmi Ktp Mobile Panels Ktp700 Firmware<16
Siemens Simatic Hmi Ktp Mobile Panels Ktp700 Firmware=16
Siemens Simatic Hmi Ktp Mobile Panels Ktp700 Firmware=16-update1
Siemens Simatic Hmi Ktp Mobile Panels Ktp700 Firmware=16-update2
Siemens Simatic Hmi Ktp Mobile Panels Ktp700 Firmware=16-update3
Siemens SIMATIC HMI Mobile Panels
Siemens Simatic Hmi Ktp Mobile Panels Ktp700f Firmware<16
Siemens Simatic Hmi Ktp Mobile Panels Ktp700f Firmware=16
Siemens Simatic Hmi Ktp Mobile Panels Ktp700f Firmware=16-update1
Siemens Simatic Hmi Ktp Mobile Panels Ktp700f Firmware=16-update2
Siemens Simatic Hmi Ktp Mobile Panels Ktp700f Firmware=16-update3
Siemens SIMATIC HMI Mobile Panels
Siemens Simatic Hmi Ktp Mobile Panels Ktp900 Firmware<16
Siemens Simatic Hmi Ktp Mobile Panels Ktp900 Firmware=16
Siemens Simatic Hmi Ktp Mobile Panels Ktp900 Firmware=16-update1
Siemens Simatic Hmi Ktp Mobile Panels Ktp900 Firmware=16-update2
Siemens Simatic Hmi Ktp Mobile Panels Ktp900 Firmware=16-update3
Siemens SIMATIC HMI Mobile Panels
Siemens Simatic Hmi Ktp Mobile Panels Ktp900f Firmware<16
Siemens Simatic Hmi Ktp Mobile Panels Ktp900f Firmware=16
Siemens Simatic Hmi Ktp Mobile Panels Ktp900f Firmware=16-update1
Siemens Simatic Hmi Ktp Mobile Panels Ktp900f Firmware=16-update2
Siemens Simatic Hmi Ktp Mobile Panels Ktp900f Firmware=16-update3
Siemens SIMATIC HMI Mobile Panels
Siemens SIMATIC WinCC Runtime Advanced<16
Siemens SIMATIC WinCC Runtime Advanced=16
Siemens SIMATIC WinCC Runtime Advanced=16-update1
Siemens SIMATIC WinCC Runtime Advanced=16-update2
Siemens SIMATIC WinCC Runtime Advanced=16-update3
siemens SIMATIC HMI Comfort Outdoor Panels 7\" firmware<15.1
siemens SIMATIC HMI Comfort Outdoor Panels 7\" firmware=15.1
siemens SIMATIC HMI Comfort Outdoor Panels 7\" firmware=15.1-update1
siemens SIMATIC HMI Comfort Outdoor Panels 7\" firmware=15.1-update2
siemens SIMATIC HMI Comfort Outdoor Panels 7\" firmware=15.1-update3
siemens SIMATIC HMI Comfort Outdoor Panels 7\" firmware=15.1-update4
siemens SIMATIC HMI Comfort Outdoor Panels 7\" firmware=15.1-update5
siemens SIMATIC HMI Comfort Outdoor Panels 15\" firmware<15.1
siemens SIMATIC HMI Comfort Outdoor Panels 15\" firmware=15.1
siemens SIMATIC HMI Comfort Outdoor Panels 15\" firmware=15.1-update1
siemens SIMATIC HMI Comfort Outdoor Panels 15\" firmware=15.1-update2
siemens SIMATIC HMI Comfort Outdoor Panels 15\" firmware=15.1-update3
siemens SIMATIC HMI Comfort Outdoor Panels 15\" firmware=15.1-update4
siemens SIMATIC HMI Comfort Outdoor Panels 15\" firmware=15.1-update5
siemens SIMATIC HMI Comfort Panels 4\" firmware<15.1
siemens SIMATIC HMI Comfort Panels 4\" firmware=15.1
siemens SIMATIC HMI Comfort Panels 4\" firmware=15.1-update1
siemens SIMATIC HMI Comfort Panels 4\" firmware=15.1-update2
siemens SIMATIC HMI Comfort Panels 4\" firmware=15.1-update3
siemens SIMATIC HMI Comfort Panels 4\" firmware=15.1-update4
siemens SIMATIC HMI Comfort Panels 4\" firmware=15.1-update5
siemens SIMATIC HMI Comfort Panels 22\" firmware<15.1
siemens SIMATIC HMI Comfort Panels 22\" firmware=15.1
siemens SIMATIC HMI Comfort Panels 22\" firmware=15.1-update1
siemens SIMATIC HMI Comfort Panels 22\" firmware=15.1-update2
siemens SIMATIC HMI Comfort Panels 22\" firmware=15.1-update3
siemens SIMATIC HMI Comfort Panels 22\" firmware=15.1-update4
siemens SIMATIC HMI Comfort Panels 22\" firmware=15.1-update5
Siemens Simatic Hmi Ktp Mobile Panels Ktp400f Firmware<15.1
Siemens Simatic Hmi Ktp Mobile Panels Ktp400f Firmware=15.1
Siemens Simatic Hmi Ktp Mobile Panels Ktp400f Firmware=15.1-update1
Siemens Simatic Hmi Ktp Mobile Panels Ktp400f Firmware=15.1-update2
Siemens Simatic Hmi Ktp Mobile Panels Ktp400f Firmware=15.1-update3
Siemens Simatic Hmi Ktp Mobile Panels Ktp400f Firmware=15.1-update4
Siemens Simatic Hmi Ktp Mobile Panels Ktp400f Firmware=15.1-update5
Siemens Simatic Hmi Ktp Mobile Panels Ktp700 Firmware<15.1
Siemens Simatic Hmi Ktp Mobile Panels Ktp700 Firmware=15.1
Siemens Simatic Hmi Ktp Mobile Panels Ktp700 Firmware=15.1-update1
Siemens Simatic Hmi Ktp Mobile Panels Ktp700 Firmware=15.1-update2
Siemens Simatic Hmi Ktp Mobile Panels Ktp700 Firmware=15.1-update3
Siemens Simatic Hmi Ktp Mobile Panels Ktp700 Firmware=15.1-update4
Siemens Simatic Hmi Ktp Mobile Panels Ktp700 Firmware=15.1-update5
Siemens Simatic Hmi Ktp Mobile Panels Ktp700f Firmware<15.1
Siemens Simatic Hmi Ktp Mobile Panels Ktp700f Firmware=15.1
Siemens Simatic Hmi Ktp Mobile Panels Ktp700f Firmware=15.1-update1
Siemens Simatic Hmi Ktp Mobile Panels Ktp700f Firmware=15.1-update2
Siemens Simatic Hmi Ktp Mobile Panels Ktp700f Firmware=15.1-update3
Siemens Simatic Hmi Ktp Mobile Panels Ktp700f Firmware=15.1-update4
Siemens Simatic Hmi Ktp Mobile Panels Ktp700f Firmware=15.1-update5
Siemens Simatic Hmi Ktp Mobile Panels Ktp900 Firmware<15.1
Siemens Simatic Hmi Ktp Mobile Panels Ktp900 Firmware=15.1
Siemens Simatic Hmi Ktp Mobile Panels Ktp900 Firmware=15.1-update1
Siemens Simatic Hmi Ktp Mobile Panels Ktp900 Firmware=15.1-update2
Siemens Simatic Hmi Ktp Mobile Panels Ktp900 Firmware=15.1-update3
Siemens Simatic Hmi Ktp Mobile Panels Ktp900 Firmware=15.1-update4
Siemens Simatic Hmi Ktp Mobile Panels Ktp900 Firmware=15.1-update5
Siemens Simatic Hmi Ktp Mobile Panels Ktp900f Firmware<15.1
Siemens Simatic Hmi Ktp Mobile Panels Ktp900f Firmware=15.1
Siemens Simatic Hmi Ktp Mobile Panels Ktp900f Firmware=15.1-update1
Siemens Simatic Hmi Ktp Mobile Panels Ktp900f Firmware=15.1-update2
Siemens Simatic Hmi Ktp Mobile Panels Ktp900f Firmware=15.1-update3
Siemens Simatic Hmi Ktp Mobile Panels Ktp900f Firmware=15.1-update4
Siemens Simatic Hmi Ktp Mobile Panels Ktp900f Firmware=15.1-update5
Siemens SIMATIC WinCC Runtime Advanced<15.1
Siemens SIMATIC WinCC Runtime Advanced=15.1
Siemens SIMATIC WinCC Runtime Advanced=15.1-update1
Siemens SIMATIC WinCC Runtime Advanced=15.1-update2
Siemens SIMATIC WinCC Runtime Advanced=15.1-update3
Siemens SIMATIC WinCC Runtime Advanced=15.1-update4
Siemens SIMATIC WinCC Runtime Advanced=15.1-update5
Siemens SIMATIC HMI Comfort Outdoor Panels v15 7’ and 15’ (incl. SIPLUS variants) Update 6<15.1
15.1
Siemens SIMATIC HMI Comfort Panels<15.1
15.1
Siemens SIMATIC HMI KTP Mobile Panels v15 KTP400F, KTP700, KTP700F, KTP900, KTP900F Update 6<15.1
15.1
Siemens SIMATIC WinCC Runtime Advanced<15.1
15.1

Remedy

https://cert-portal.siemens.com/productcert/pdf/ssa-538778.pdf

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2021-25660?

    CVE-2021-25660 has been classified with a high-severity rating due to potential remote code execution risks.

  • How do I fix CVE-2021-25660?

    To remediate CVE-2021-25660, upgrade the affected Siemens SIMATIC HMI Comfort Outdoor Panels and HMI Comfort Panels to versions V15.1 Update 6 or V16 Update 4 and later.

  • What versions are affected by CVE-2021-25660?

    CVE-2021-25660 affects all versions of SIMATIC HMI Comfort Outdoor Panels and Comfort Panels below V15.1 Update 6 and V16 Update 4 respectively.

  • What types of devices are impacted by CVE-2021-25660?

    Devices impacted by CVE-2021-25660 include Siemens SIMATIC HMI Comfort Outdoor Panels and HMI Comfort Panels.

  • Is there a patch available for CVE-2021-25660?

    Yes, a patch is available by updating to the specified versions of the affected Siemens products to address CVE-2021-25660.

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