CVE-2023-26293: A vulnerability has been identified in Totally Integrated Automation Portal (TIA Portal) V15 (All versions), T

Routine

HIGH 7.3DOWNGRADE

CVE-2023-26293 is a high-severity flaw (CVSS 7.3) affecting tia portal. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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

Why this priority

High severity

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.3 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.2% (top 85%)
CISA exploited list	No
Weakness	CWE-20, CWE-22
Published	2023-04-11
Last modified	2026-10-23

Publisher (CNA): Siemens AG · Vendor: siemens

Am I affected?

Timeline

2023-04-11 10:15 UTCPublished CVE record published
2026-10-23 23:10 UTCUpdated Record last modified

siemens tia portal DOWNGRADE

Affected: 15 · 16 · 17 · 17 update1 · 17 update2 · 17 update3 · 17 update4 · 17 update5

Fixed in: no fixed release known

Safe to downgrade to: a release before 15

1. Check installed version

apt-cache policy tia-portal || rpm -q tia-portal || tia-portal --version

2. No fixed release: DOWNGRADE to a release before 15 (Debian / Ubuntu)

apt-cache madison tia-portal sudo apt install tia-portal=<VERSION_BEFORE_15> sudo apt-mark hold tia-portal

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list tia-portal sudo dnf downgrade tia-portal-<VERSION_BEFORE_15> sudo dnf versionlock add tia-portal

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-26293?

tia portal: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-26293 being exploited?

CVE-2023-26293 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-26293 affect?

CVE-2023-26293 affects tia portal. Severity is high (CVSS 7.3). 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 Port

How urgent is CVE-2023-26293?

Priority 29/100. High severity

References

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