CVE-2018-13814

A vulnerability has been identified in SIMATIC HMI Comfort Panels 4" - 22" (All versions < V14), SIMATIC HMI Comfort Outdoor Panels 7" & 15" (All versions < V14), SIMATIC HMI KTP Mobile Panels KTP400F, KTP700, KTP700F, KTP900 and KTP900F (All versions < V14), SIMATIC WinCC Runtime Advanced (All versions < V14), SIMATIC WinCC Runtime Professional (All versions < V14), SIMATIC WinCC (TIA Portal) (All versions < V14), SIMATIC HMI Classic Devices (TP/MP/OP/MP Mobile Panel) (All versions). The integrated web server (port 80/tcp and port 443/tcp) of the affected devices could allow an attacker to inject HTTP headers. An attacker must trick a valid user who is authenticated to the device into clicking on a malicious link to exploit the vulnerability. At the time of advisory publication no public exploitation of this security vulnerability was known.

Published: 2018-12-13 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2018-13814 is rated Moderate Risk (62.3/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.68%). EPSS rose +1.26% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2018-13814

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.43% 1.68% +1.26%
2 2025-11-21 0.49% 0.43% -0.06%
3 2025-11-18 — 0.49% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-13814

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.8 3.0 HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 5.9 [email protected]
6.8 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 6.4 [email protected]

Weakness enumeration for CVE-2018-13814

Affected software / configurations for CVE-2018-13814

Vendor Product Version Raw CPE
siemens simatic_hmi_comfort_panels_firmware < 14.0 cpe:2.3:o:siemens:simatic_hmi_comfort_panels_firmware:*:*:*:*:*:*:*:*
siemens simatic_hmi_comfort_outdoor_panels_firmware < 14.0 cpe:2.3:o:siemens:simatic_hmi_comfort_outdoor_panels_firmware:*:*:*:*:*:*:*:*
siemens simatic_hmi_ktp_mobile_panels_ktp400f_firmware < 14.0 cpe:2.3:o:siemens:simatic_hmi_ktp_mobile_panels_ktp400f_firmware:*:*:*:*:*:*:*:*
siemens simatic_hmi_ktp_mobile_panels_ktp700_firmware < 14.0 cpe:2.3:o:siemens:simatic_hmi_ktp_mobile_panels_ktp700_firmware:*:*:*:*:*:*:*:*
siemens simatic_hmi_ktp_mobile_panels_ktp700f_firmware < 14.0 cpe:2.3:o:siemens:simatic_hmi_ktp_mobile_panels_ktp700f_firmware:*:*:*:*:*:*:*:*
siemens simatic_hmi_ktp_mobile_panels_ktp900_firmware < 14.0 cpe:2.3:o:siemens:simatic_hmi_ktp_mobile_panels_ktp900_firmware:*:*:*:*:*:*:*:*
siemens simatic_hmi_ktp_mobile_panels_ktp900f_firmware < 14.0 cpe:2.3:o:siemens:simatic_hmi_ktp_mobile_panels_ktp900f_firmware:*:*:*:*:*:*:*:*
siemens simatic_wincc_\(tia_portal\) < 14.0 cpe:2.3:a:siemens:simatic_wincc_\(tia_portal\):*:*:*:*:*:*:*:*
siemens simatic_wincc_runtime < 14.0 cpe:2.3:a:siemens:simatic_wincc_runtime:*:*:*:*:advanced:*:*:*
siemens simatic_wincc_runtime < 14.0 cpe:2.3:a:siemens:simatic_wincc_runtime:*:*:*:*:professional:*:*:*
siemens simatic_hmi_tp_firmware — cpe:2.3:o:siemens:simatic_hmi_tp_firmware:*:*:*:*:*:*:*:*
siemens simatic_hmi_mp_firmware — cpe:2.3:o:siemens:simatic_hmi_mp_firmware:*:*:*:*:*:*:*:*
siemens simatic_hmi_op_firmware — cpe:2.3:o:siemens:simatic_hmi_op_firmware:*:*:*:*:*:*:*:*

References for CVE-2018-13814

cvelogic Threat Intelligence