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CVE-2021-25660

HIGHCVSS 7.5/10EPSS 0.96%

Last modified

CVE-2021-25660 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 0.96% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1
7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability
0.96%

57.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
SiemensSimatic Hmi Comfort Outdoor Panels 7\" Firmware< 16
SiemensSimatic Hmi Comfort Outdoor Panels 7\" Firmware16
SiemensSimatic Hmi Comfort Outdoor Panels 15\" Firmware< 16
SiemensSimatic Hmi Comfort Outdoor Panels 15\" Firmware16
SiemensSimatic Hmi Comfort Panels 4\" Firmware< 16
SiemensSimatic Hmi Comfort Panels 4\" Firmware16
SiemensSimatic Hmi Comfort Panels 22\" Firmware< 16
SiemensSimatic Hmi Comfort Panels 22\" Firmware16
SiemensSimatic Hmi Ktp Mobile Panels Ktp400f Firmware< 16
SiemensSimatic Hmi Ktp Mobile Panels Ktp400f Firmware16
SiemensSimatic Hmi Ktp Mobile Panels Ktp700 Firmware< 16
SiemensSimatic Hmi Ktp Mobile Panels Ktp700 Firmware16
SiemensSimatic Hmi Ktp Mobile Panels Ktp700f Firmware< 16
SiemensSimatic Hmi Ktp Mobile Panels Ktp700f Firmware16
SiemensSimatic Hmi Ktp Mobile Panels Ktp900 Firmware< 16
SiemensSimatic Hmi Ktp Mobile Panels Ktp900 Firmware16
SiemensSimatic Hmi Ktp Mobile Panels Ktp900f Firmware< 16
SiemensSimatic Hmi Ktp Mobile Panels Ktp900f Firmware16
SiemensSimatic Wincc Runtime Advanced< 16
SiemensSimatic Wincc Runtime Advanced16
SiemensSimatic Hmi Comfort Outdoor Panels 7\" Firmware< 15.1
SiemensSimatic Hmi Comfort Outdoor Panels 7\" Firmware15.1
SiemensSimatic Hmi Comfort Outdoor Panels 15\" Firmware< 15.1
SiemensSimatic Hmi Comfort Outdoor Panels 15\" Firmware15.1
SiemensSimatic Hmi Comfort Panels 4\" Firmware< 15.1
SiemensSimatic Hmi Comfort Panels 4\" Firmware15.1
SiemensSimatic Hmi Comfort Panels 22\" Firmware< 15.1
SiemensSimatic Hmi Comfort Panels 22\" Firmware15.1
SiemensSimatic Hmi Ktp Mobile Panels Ktp400f Firmware< 15.1
SiemensSimatic Hmi Ktp Mobile Panels Ktp400f Firmware15.1
SiemensSimatic Hmi Ktp Mobile Panels Ktp700 Firmware< 15.1
SiemensSimatic Hmi Ktp Mobile Panels Ktp700 Firmware15.1
SiemensSimatic Hmi Ktp Mobile Panels Ktp700f Firmware< 15.1
SiemensSimatic Hmi Ktp Mobile Panels Ktp700f Firmware15.1
SiemensSimatic Hmi Ktp Mobile Panels Ktp900 Firmware< 15.1
SiemensSimatic Hmi Ktp Mobile Panels Ktp900 Firmware15.1
SiemensSimatic Hmi Ktp Mobile Panels Ktp900f Firmware< 15.1
SiemensSimatic Hmi Ktp Mobile Panels Ktp900f Firmware15.1
SiemensSimatic Wincc Runtime Advanced< 15.1
SiemensSimatic Wincc Runtime Advanced15.1

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-25660?
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.
How severe is CVE-2021-25660?
CVE-2021-25660 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.96% probability of exploitation in the next 30 days.
How do I fix CVE-2021-25660?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-25660?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST