How severe is CVE-2023-26293?

CVE-2023-26293 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability low.

Is CVE-2023-26293 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-26293?

CVE-2023-26293 primarily affects Siemens Tia Portal. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-26293?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-26293 published?

CVE-2023-26293 was published on 2023-04-11 and last updated on 2026-06-17.

CVE-2023-26293

CVE-2023-26293 is a high-severity vulnerability in Siemens Tia Portal with a CVSS 3.x base score of 7.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: High (CVSS 3.x base score 7.3)
EPSS exploit prediction: 0% (16th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Siemens Tia Portal
Published: 2023-04-11
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2023-26293?: 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.
How severe is CVE-2023-26293?: CVE-2023-26293 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability low.
Is CVE-2023-26293 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-26293?: CVE-2023-26293 primarily affects Siemens Tia Portal. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-26293?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-26293 published?: CVE-2023-26293 was published on 2023-04-11 and last updated on 2026-06-17.

References

Affected products (9)

cpe:2.3:a:siemens:tia_portal:15:*:*:*:*:*:*:*
cpe:2.3:a:siemens:tia_portal:16:*:*:*:*:*:*:*
cpe:2.3:a:siemens:tia_portal:17:-:*:*:*:*:*:*
cpe:2.3:a:siemens:tia_portal:17:update1:*:*:*:*:*:*
cpe:2.3:a:siemens:tia_portal:17:update2:*:*:*:*:*:*
cpe:2.3:a:siemens:tia_portal:17:update3:*:*:*:*:*:*
cpe:2.3:a:siemens:tia_portal:17:update4:*:*:*:*:*:*
cpe:2.3:a:siemens:tia_portal:17:update5:*:*:*:*:*:*
cpe:2.3:a:siemens:tia_portal:18:-:*:*:*:*:*:*

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