What is CVE-2018-13812?

CVE-2018-13812 is a high-severity vulnerability in Siemens Simatic Hmi Comfort Outdoor Panels, classified under Path Traversal. CVSS score: 7.5/10. Published 2018-12-13.

How severe is CVE-2018-13812?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2018-13812 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Path Traversal in Siemens Simatic Hmi Comfort Outdoor Panels

CVE-2018-13812

A vulnerability has been identified in SIMATIC HMI Comfort Panels 4" - 22" (All versions < V15 Update 4), SIMATIC HMI Comfort Outdoor Panels 7" & 15" (All versions < V15 Update 4), SIMATIC HMI KTP Mobile Panels KTP400F, KTP700, KTP700F, KTP900 and KTP900F (All versions < V15 Update 4), SIMATIC WinCC Runtime Advanced (All versions < V15 Update 4), SIMATIC WinCC Runtime Professional (All versions < V15 Update 4), SIMATIC WinCC (TIA Portal) (All versions < V15 Update 4), SIMATIC HMI Classic Devices (TP/MP/OP/MP Mobile Panel) (All versions). A directory traversal vulnerability could allow to download arbitrary files from the device. The security vulnerability could be exploited by an attacker with network access to the integrated web server. No user interaction and no authentication is required to exploit the vulnerability. The vulnerability impacts the confidentiality of the device. At the time of advisory publication no public exploitation of this security vulnerability was known.

Vulnerability class: Path Traversal (Directory Traversal)

Published 2018-12-13 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.036 (89.2th percentile), scored 2026-10-21.

Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 89.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.027 · newest: 0.036 · change: +0.008

Affected products

Weakness classification (CWE)

CWE-22 — Path Traversal

Public proof-of-concept exploits

ARPSyndicate/cve-scores

References

www.securityfocus.com/bid/105922 (VDB Entry, Third Party Advisory, vdb-entry)
cert-portal.siemens.com/productcert/pdf/ssa-233109.pdf (Vendor Advisory)

Frequently asked questions

What is CVE-2018-13812?: CVE-2018-13812 is a high-severity vulnerability in Siemens Simatic Hmi Comfort Outdoor Panels, classified under Path Traversal. CVSS score: 7.5/10. Published 2018-12-13.
How severe is CVE-2018-13812?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2018-13812 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.