← Vulnerability feed

Vulnerability record · CVE-2018-11453 · published 7 August 2018

CVE-2018-11453: Siemens simatic step 7 \(tia portal\) incorrect default permissions vulnerability

Siemens · Simatic Step 7 \(Tia Portal\)

A vulnerability has been identified in SIMATIC STEP 7 (TIA Portal) and WinCC (TIA Portal) V10, V11, V12 (All versions), SIMATIC STEP 7 (TIA Portal) and WinCC (TIA Portal) V13 (All versions < V13 SP2 Update 2), SIMATIC STEP 7 (TIA Portal) and WinCC (TIA Portal) V14 (All versions < V14 SP1 Update 6), SIMATIC STEP 7 (TIA Portal) and WinCC (TIA Portal) V15 (All versions < V15 Update 2). Improper file permissions in the default installation of TIA Portal may allow an attacker with local file system access to insert specially crafted files which may prevent TIA Portal startup (Denial-of-Service) or lead to local code execution. No special privileges are required, but the victim needs to attempt to start TIA Portal after the manipulation.

7.8 CVSS 3.0 High EPSS 0.36% · top 72.6% CWE-276 · Incorrect default permissionsCWE-732 · Incorrect permission assignment
7.8CVSS 3.0 base score, v2 4.6
0.36%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

A vulnerability has been identified in SIMATIC STEP 7 (TIA Portal) and WinCC (TIA Portal) V10, V11, V12 (All versions), SIMATIC STEP 7 (TIA Portal) and WinCC (TIA Portal) V13 (All versions < V13 SP2 Update 2), SIMATIC STEP 7 (TIA Portal) and WinCC (TIA Portal) V14 (All versions < V14 SP1 Update 6), SIMATIC STEP 7 (TIA Portal) and WinCC (TIA Portal) V15 (All versions < V15 Update 2). Improper file permissions in the default installation of TIA Portal may allow an attacker with local file system access to insert specially crafted files which may prevent TIA Portal startup (Denial-of-Service) or lead to local code execution. No special privileges are required, but the victim needs to attempt to start TIA Portal after the manipulation.

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.securityfocus.com/bid/105115 Third Party AdvisoryVDB Entry
https://cert-portal.siemens.com/productcert/pdf/ssa-979106.pdf Vendor Advisory
http://www.securityfocus.com/bid/105115 Third Party AdvisoryVDB Entry
https://cert-portal.siemens.com/productcert/pdf/ssa-979106.pdf Vendor Advisory

Track CVE-2018-11453 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.1CVE-2019-6572Siemens simatic hmi comfort panels firmware information exposure vulnerabilityA vulnerability has been identified in SIMATIC HMI Comfort Panels 4" - 22" (All versions < V15.1 Update 1), SIMATIC HMI Comfort Outdoor Panels 7" & 1…EPSS 2.7%8.8CVE-2019-10918Siemens simatic pcs 7 vulnerabilityA vulnerability has been identified in SIMATIC PCS 7 V8.0 and earlier (All versions), SIMATIC PCS 7 V8.1 (All versions < V8.1 with WinCC V7.3 Upd 19)…EPSS 1.9%8.8CVE-2019-10916Siemens simatic pcs 7 sql injection vulnerabilityA vulnerability has been identified in SIMATIC PCS 7 V8.0 and earlier (All versions), SIMATIC PCS 7 V8.1 (All versions < V8.1 with WinCC V7.3 Upd 19)…EPSS 1.5%8.8CVE-2018-13814Siemens simatic hmi comfort panels firmware improper input validation vulnerabilityA vulnerability has been identified in SIMATIC HMI Comfort Panels 4" - 22" (All versions < V14), SIMATIC HMI Comfort Outdoor Panels 7" & 15" (All ver…EPSS 1.7%8.6CVE-2018-11454Siemens simatic step 7 \(tia portal\) incorrect default permissions vulnerabilityA vulnerability has been identified in SIMATIC STEP 7 (TIA Portal) and WinCC (TIA Portal) V10, V11, V12 (All versions), SIMATIC STEP 7 (TIA Portal) a…EPSS 0.44%8.1CVE-2018-13813Siemens simatic hmi comfort panels firmware open redirect vulnerabilityA vulnerability has been identified in SIMATIC HMI Comfort Panels 4" - 22" (All versions < V15 Update 4), SIMATIC HMI Comfort Outdoor Panels 7" & 15"…EPSS 1.7%7.5CVE-2021-37172Siemens simatic s7-1200 cpu firmware improper authentication vulnerabilityA vulnerability has been identified in SIMATIC S7-1200 CPU family (incl. SIPLUS variants) (V4.5.0). Affected devices fail to authenticate against con…EPSS 0.92%7.5CVE-2018-13812Siemens simatic hmi comfort panels firmware path traversal vulnerabilityA vulnerability has been identified in SIMATIC HMI Comfort Panels 4" - 22" (All versions < V15 Update 4), SIMATIC HMI Comfort Outdoor Panels 7" & 15"…EPSS 3.6%

Source: NIST National Vulnerability Database (record CVE-2018-11453), CISA KEV, FIRST EPSS (scores of 2026-10-06). This page is refreshed as NVD updates the record.