CVE-2019-19276

mediumpriority · track · 21EPSS 0.010 · 63 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.02% (63rd) EPSS

CVSS 5 · medium

Is it mine?

10 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · cisa_csaf_ot · nvd

EPSS · scored 2026-10-27

A vulnerability has been identified in SIMATIC HMI Comfort Panels 1st Generation (incl. SIPLUS variants) (All versions < V16 Update 4), SIMATIC HMI KTP Mobile Panels (All versions < V16 Update 4). Specially crafted packets sent to port 161/udp can cause the SNMP service of affected devices to crash. A manual restart of the device is required to resume operation of the service.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedSIMATIC HMI Comfort Panels 1st Generation (incl. SIPLUS variants)siemens_psirt
Update to V16 Update 4 or later version
https://support.industry.siemens.com/cs/ww/en/view/109775861/
FixedSIMATIC HMI KTP Mobile Panelssiemens_psirt
Update to V16 Update 4 or later version
https://support.industry.siemens.com/cs/ww/en/view/109775861/
FixedSIMATIC HMI Comfort Panels 1st Generation (incl. SIPLUS variants)cisa_csaf_ot
Update to V16 Update 4 or later version
https://support.industry.siemens.com/cs/ww/en/view/109775861/
FixedSIMATIC HMI KTP Mobile Panelscisa_csaf_ot
Update to V16 Update 4 or later version
https://support.industry.siemens.com/cs/ww/en/view/109775861/
MitigationSIMATIC HMI Comfort Panels 1st Generation (incl. SIPLUS variants)siemens_psirt
Disable SNMP if this is supported by the product. Disabling SNMP fully mitigates the vulnerability
MitigationSIMATIC HMI KTP Mobile Panelssiemens_psirt
Disable SNMP if this is supported by the product. Disabling SNMP fully mitigates the vulnerability
MitigationSIMATIC HMI Comfort Panels 1st Generation (incl. SIPLUS variants)cisa_csaf_ot
Disable SNMP if this is supported by the product. Disabling SNMP fully mitigates the vulnerability
MitigationSIMATIC HMI KTP Mobile Panelscisa_csaf_ot
Disable SNMP if this is supported by the product. Disabling SNMP fully mitigates the vulnerability

cvss

Technical severity, 0–10. One row per scoring source.

5.3

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.05mediumAV:N/AC:L/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Lprimary · NVD / NIST USexploitability 3.9 · impact 1.4

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:Csecondary · CISA US

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:Csecondary · Siemens ProductCERT DE

v3.14.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-787USCWE-787USCWE-787US

affected products (10)

Products and version ranges known to be affected.

SIMATIC HMI Comfort Panels 1st Generation (incl. SIPLUS variants)all versionscisa_csaf_otUS
SIMATIC HMI KTP Mobile Panelsall versionscisa_csaf_otUS
Siemens SIMATIC HMI Comfort Panels 1st Generation (incl. SIPLUS variants)< V16_Update_4cisa_csaf_otUS
Siemens SIMATIC HMI KTP Mobile Panels< V16_Update_4cisa_csaf_otUS
Siemens SIMATIC HMI Comfort Panels 1st Generation (incl. SIPLUS variants)All versions → V16 Update 4enisa_euvdEU
Siemens SIMATIC HMI KTP Mobile PanelsAll versions → V16 Update 4enisa_euvdEU
siemens simatic hmi comfort panels firmware= 16nvdUScpe:2.3:o:siemens:simatic_hmi_comfort_panels_firmware:*:*:*:*:*:*:*:*
siemens simatic hmi ktp mobile panels firmware= 16nvdUScpe:2.3:o:siemens:simatic_hmi_ktp_mobile_panels_firmware:*:*:*:*:*:*:*:*
Siemens SIMATIC HMI Comfort Panels 1st Generation (incl. SIPLUS variants)< V16 Update 4siemens_psirtDE
Siemens SIMATIC HMI KTP Mobile Panels< V16 Update 4siemens_psirtDE

advisories (2)

Vendor and ecosystem advisories describing this.

SSA-594364SSA-594364: Denial-of-Service Vulnerability in SNMP Implementation of WinCC Runtime2021-05-11csaf · siemens_psirtDE
A denial-of-service vulnerability in WinCC Runtime could allow an unauthenticated attacker with network access to cause a denial-of-service condition in the SNMP service by sending crafted SNMP packets to port 161/udp. Siemens has released updates for the affected products and recommends to update to the latest versions.
ICSA-21-131-06Siemens SNMP Implementation of WinCC Runtime2021-05-11icsa · cisa_csaf_otUS
A denial-of-service vulnerability in WinCC Runtime could allow an unauthenticated attacker with network access to cause a denial-of-service condition in the SNMP service by sending crafted SNMP packets to port 161/udp. Siemens has released updates for the affected products and recommends to update to the latest versions.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cisa_csaf_ot nvd siemens_psirt NVD CVE.org MITRE

published 2021-05-12modified 2026-06-17

references (8)

External citations — patches, advisories, analysis.

scry

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