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Fencer Vulns
high 7.8

CVE-2023-26293 json

A vulnerability has been identified in Totally Integrated Automation Portal (TIA Portal) V15 (All versions), Totally Integrated Automation…

published 2023-04-11 3 y ago modified 2026-10-23 16 d ago also EUVD-2023-30116

cvss
7.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 16%
public exploits
0
none known

Summary

A vulnerability has been identified in Totally Integrated Automation Portal (TIA Portal) V15 (All versions), Totally Integrated Automation Portal (TIA Portal) V16 (All versions < V16 Update 7), Totally Integrated Automation Portal (TIA Portal) V17 (All versions < V17 Update 6), Totally Integrated Automation Portal (TIA Portal) V18 (All versions < V18 Update 1). Affected products contain a path traversal vulnerability that could allow the creation or overwrite of arbitrary files in the engineering system. If the user is tricked to open a malicious PC system configuration file, an attacker could exploit this vulnerability to achieve arbitrary code execution.

Patch / fix

  • Siemens Totally Integrated Automation Portal (TIA Portal) V16 V16 Update 7
  • Siemens Totally Integrated Automation Portal (TIA Portal) V17 V17 Update 6
  • Siemens Totally Integrated Automation Portal (TIA Portal) V18 V18 Update 1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-25-324-05 updated cvss 7.8

Festo Didactic products

  • Festo DELL XE3 Software V15<V17Update6, Software V18<V18Update1 Festo Hardware <June2023 Software V15<V17Update6, Software V18<V18Update1
    affected: vendor fix

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

cisa ICSA-23-103-08 updated cvss 7.3

Siemens Mendix Forgot Password Module

  • Siemens Totally Integrated Automation Portal (TIA Portal) V15
    affected: mitigation, no fix planned “Do not open untrusted project files or PC system configuration files”
  • Siemens Totally Integrated Automation Portal (TIA Portal) V16
    affected: mitigation, no fix available “Do not open untrusted project files or PC system configuration files”
  • Siemens Totally Integrated Automation Portal (TIA Portal) V17 <V17 Update 6
    affected: fixed in V17, mitigation “Do not open untrusted project files or PC system configuration files” support.industry.siemens.com
  • Siemens Totally Integrated Automation Portal (TIA Portal) V18 <V18 Update 1
    affected: fixed in V18, mitigation “Do not open untrusted project files or PC system configuration files” support.industry.siemens.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

cisa ICSA-23-103-04 updated cvss 7.3

Siemens TIA Portal

  • Siemens Totally Integrated Automation Portal (TIA Portal) V15
    affected: mitigation, no fix planned
  • Siemens Totally Integrated Automation Portal (TIA Portal) V16 <V16_Update_7
    affected: fixed in V16, mitigation
  • Siemens Totally Integrated Automation Portal (TIA Portal) V17 <V17_Update_6
    affected: fixed in V17, mitigation
  • Siemens Totally Integrated Automation Portal (TIA Portal) V18 <V18_Update_1
    affected: fixed in V18, mitigation

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
23 mo ago

Exploit prediction

0.25% chance of exploitation in the next 30 days, higher than 16% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.3 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L/E:P/RL:O/RC:C
CNA 3.1 7.3 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L
CNA 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

  • Siemens Totally Integrated Automation Portal (TIA Portal) V15
  • Siemens Totally Integrated Automation Portal (TIA Portal) V16
  • Siemens Totally Integrated Automation Portal (TIA Portal) V17
  • Siemens Totally Integrated Automation Portal (TIA Portal) V18

Classification

Weakness
  • CWE-20 Improper Input Validation
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

Sources

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.