A vulnerability has been identified in SIMATIC HMI Comfort Panels 4" - 22" (All versions < V15.1 Update 1), SIMATIC HMI Comfort Outdoor Pan…

published 2019-05-14 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-16136

cvss: 5.4; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.9%; EPSS 0.9% chance of exploitation in 30 days, percentile 59%
public exploits: 0; none known

A vulnerability has been identified in SIMATIC HMI Comfort Panels 4" - 22" (All versions < V15.1 Update 1), SIMATIC HMI Comfort Outdoor Panels 7" & 15" (All versions < V15.1 Update 1), SIMATIC HMI KTP Mobile Panels KTP400F, KTP700, KTP700F, KTP900 und KTP900F (All versions < V15.1 Update 1), SIMATIC WinCC Runtime Advanced (All versions < V15.1 Update 1), SIMATIC WinCC Runtime Professional (All versions < V15.1 Update 1), SIMATIC WinCC (TIA Portal) (All versions < V15.1 Update 1), SIMATIC HMI Classic Devices (TP/MP/OP/MP Mobile Panel) (All versions). The integrated web server could allow Cross-Site Scripting (XSS) attacks if an attacker is able to modify particular parts of the device configuration via SNMP. The security vulnerability could be exploited by an attacker with network access to the affected system. Successful exploitation requires system privileges and user interaction. An attacker could use the vulnerability to compromise confidentiality and the integrity of the affected system. At the stage of publishing this security advisory no public exploitation is known.

Patch / fix

fixed in 9

siemens simatic_wincc_(tia_portal) 15.1
siemens simatic_wincc_runtime 15.1
siemens simatic_hmi_comfort_panels_firmware 15.1
siemens simatic_hmi_comfort_outdoor_panels_firmware 15.1
siemens simatic_hmi_ktp_mobile_panels_ktp400f_firmware 15.1
siemens simatic_hmi_ktp_mobile_panels_ktp700_firmware 15.1
siemens simatic_hmi_ktp_mobile_panels_ktp700f_firmware 15.1
siemens simatic_hmi_ktp_mobile_panels_ktp900_firmware 15.1
siemens simatic_hmi_ktp_mobile_panels_ktp900f_firmware 15.1

Exploit prediction

0.88% chance of exploitation in the next 30 days, higher than 59% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.0	5.4	CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
NVD	2.0	3.5	AV:N/AC:M/Au:S/C:N/I:P/A:N

Affected products

Siemens AG SIMATIC HMI Comfort Panels 4" - 22"
Siemens AG SIMATIC HMI Comfort Outdoor Panels 7" & 15"
Siemens AG SIMATIC HMI KTP Mobile Panels KTP400F, KTP700, KTP700F, KTP900 und KTP900F
Siemens AG SIMATIC WinCC Runtime Advanced
Siemens AG SIMATIC WinCC Runtime Professional
Siemens AG SIMATIC WinCC (TIA Portal)
Siemens AG SIMATIC HMI Classic Devices (TP/MP/OP/MP Mobile Panel)

Classification

Weakness

CWE-80 Improper Neutralization of Script-Related HTML Tags in a Web Page
CWE-79 Improper Neutralization of Input During Web Page Generation

References

cert-portal.siemens.com /productcert/pdf/ssa-804486.pdf
vendor-advisory
securityfocus.com /bid/108412
vdb-entry
us-cert.gov /ics/advisories/ICSA-19-134-09

Sources

CVE List CVE-2019-6577
NVD CVE-2019-6577

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary