CVE-2021-27383

7.5 HIGH

A vulnerability has been identified in SIMATIC HMI Comfort Outdoor Panels V15 7\" & 15\" (incl

Published: 2021-05-12 · Last updated: 2026-06-02

Severity and scoring

CVSS: 7.5 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE: CWE-770

Affected products

Vendor	Product
siemens	simatic_hmi_comfort_outdoor_panels_15\"_firmware, simatic_hmi_comfort_outdoor_panels_7\"_firmware, simatic_hmi_comfort_panels_22\"_firmware

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), SINAMICS GH150 (All versions), SINAMICS GL150 (with option X30) (All versions), SINAMICS GM150 (with option X30) (All versions), SINAMICS SH150 (All versions), SINAMICS SL150 (All versions), SINAMICS SM120 (All versions), SINAMICS SM150 (All versions), SINAMICS SM150i (All versions). SmartVNC has a heap allocation leak vulnerability in the server Tight encoder, which could result in a Denial-of-Service condition.

Source: NVD

References

[NVD]https://nvd.nist.gov/vuln/detail/CVE-2021-27383
[Vendor advisory]https://cert-portal.siemens.com/productcert/pdf/ssa-286838.pdf
[Vendor advisory]https://cert-portal.siemens.com/productcert/pdf/ssa-538778.pdf
[Other]https://us-cert.cisa.gov/ics/advisories/icsa-21-131-12
[Vendor advisory]https://cert-portal.siemens.com/productcert/pdf/ssa-286838.pdf
[Vendor advisory]https://cert-portal.siemens.com/productcert/pdf/ssa-538778.pdf
[Other]https://us-cert.cisa.gov/ics/advisories/icsa-21-131-12

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