No exploitation reportedFix available

CVE-2018-13813

Q: Is CVE-2018-13813 actively exploited?

Active exploitation of CVE-2018-13813 has not been confirmed. Its EPSS score was 1.7% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2018-13813?

CVE-2018-13813 has a CVSS v3 base score of 8.1 (HIGH severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N.

No exploitation reported by the sources we read.

Published2018-12-13
WeaknessCWE-601

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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). The webserver of affected HMI devices may allow URL redirections to untrusted websites. 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.

Timeline

dates in UTC

2018-12-1316:29CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2018-13813?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2018-13813?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Siemens simatic hmi comfort outdoor panels firmwareversion to verify

Branch	Affected	Fixed in	Source
15.0	≤ 15.0	no fix published	NVD

Siemens simatic hmi comfort panels firmwareversion to verify

Branch	Affected	Fixed in	Source
15.0	≤ 15.0	no fix published	NVD

Siemens simatic hmi ktp mobile panels ktp400f firmwareversion to verify

Branch	Affected	Fixed in	Source
15.0	≤ 15.0	no fix published	NVD

9 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

ICSA-18-317-08 CISA7 known affected
Siemens SIMATIC Panels
Siemens SIMATIC HMI Comfort Panels 4" - 22" (incl. SIPLUS variants): All versions < V15 Update 4 · Siemens SIMATIC HMI Comfort Outdoor Panels 7" & 15" (incl. SIPLUS variants): All versions < V15 Update 4 · Siemens SIMATIC HMI KTP Mobile Panels KTP400F KTP700 · +4 more

Full record on NVD

Fix

Vendor fix CISA ICSA-18-317-08 · 3 productsUpdate SIMATIC WinCC (TIA Portal) to V15 Update 4 or newer, and then update panel to V15 Update 4 or newer. https://support.industry.siemens.com/cs/ww/en/view/109755826
Vendor fix CISA ICSA-18-317-08 · 3 productsUpdate to V15 Update 4 or newer https://support.industry.siemens.com/cs/ww/en/view/109755826
Mitigation from the vendor CISA ICSA-18-317-08 · 7 productsRestrict network access to the integrated web server.
Mitigation from the vendor CISA ICSA-18-317-08 · 7 productsDeactivate the web server if not required. The web server is disabled by default.

Advisories and patches

cert-portal.siemens.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.08.1read 2026-10-23
NVDCVSS 2.05.8read 2026-10-23
CNAweakness (CWE)CWE-601read 2026-10-23
NVDweakness (CWE)CWE-601read 2026-10-23
FIRST EPSSEPSS score1.7 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Published: 2018-12-13
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2018-13813?

Is CVE-2018-13813 actively exploited?

Active exploitation of CVE-2018-13813 has not been confirmed. Its EPSS score was 1.7% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-13813?

CVE-2018-13813 has a CVSS v3 base score of 8.1 (HIGH severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N.

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