CVE-2017-6865: A vulnerability has been identified in Primary Setup Tool (PST) (All versions < V4.2 HF1), SIMATIC Automation

Q: How urgent is CVE-2017-6865?

Priority 33/100. No elevated risk signals yet.

Routine

MEDIUM 6.5MITIGATEMITIGATEMITIGATE

CVE-2017-6865 is a medium-severity flaw (CVSS 6.5) affecting pcs 7, primary setup tool, security configuration tool. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability has been identified in Primary Setup Tool (PST) (All versions < V4.2 HF1), SIMATIC Automation Tool (All versions < V3.0), SIMATIC NET PC-Software (All versions < V14 SP1), SIMATIC PCS 7 V8.1 (All versions), SIMATIC PCS 7 V8.2 (All versions < V8.2 SP1), SIMATIC STEP 7 (TIA Portal) V13 (All versions < V13 SP2), SIMATIC STEP 7 (TIA Portal) V14 (All versions < V14 SP1), SIMATIC STEP 7 V5.X (All versions < V5.6), SIMATIC WinAC RTX 2010

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Adjacent network
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.5% (top 59%)
CISA exploited list	No
Weakness	CWE-20
Published	2017-05-11
Last modified	2026-06-17

Publisher (CNA): Siemens AG · Vendor: siemens

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2017-05-11 10:29 UTCPublished CVE record published
2026-06-17 01:23 UTCUpdated Record last modified

siemens pcs 7 MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy pcs-7 || rpm -q pcs-7 || pcs-7 --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

siemens primary setup tool MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy primary-setup-tool || rpm -q primary-setup-tool || primary-setup-tool --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

siemens security configuration tool MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy security-configuration-tool || rpm -q security-configuration-tool || security-configuration-tool --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

siemens simatic automation tool MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy simatic-automation-tool || rpm -q simatic-automation-tool || simatic-automation-tool --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

siemens simatic net pc-software MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy simatic-net-pc-software || rpm -q simatic-net-pc-software || simatic-net-pc-software --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

siemens simatic step 7 \(tia portal\) DOWNGRADE

Affected: 5.0 · 13.0 · 14.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 5.0

1. Check installed version

apt-cache policy simatic-step-7-tia-portal || rpm -q simatic-step-7-tia-portal || simatic-step-7-tia-portal --version

2. No fixed release: DOWNGRADE to a release before 5.0 (Debian / Ubuntu)

apt-cache madison simatic-step-7-tia-portal sudo apt install simatic-step-7-tia-portal=<VERSION_BEFORE_5.0> sudo apt-mark hold simatic-step-7-tia-portal

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

dnf --showduplicates list simatic-step-7-tia-portal sudo dnf downgrade simatic-step-7-tia-portal-<VERSION_BEFORE_5.0> sudo dnf versionlock add simatic-step-7-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-2017-6865?

pcs 7: mitigate or apply the listed mitigation; primary setup tool: mitigate or apply the listed mitigation; security configuration tool: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2017-6865 being exploited?

CVE-2017-6865 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-2017-6865 affect?

CVE-2017-6865 affects pcs 7, primary setup tool, security configuration tool. Severity is medium (CVSS 6.5). A vulnerability has been identified in Primary Setup Tool (PST) (All versions < V4.2 HF1), SIMATIC Automation Tool (All versions < V3.0), SIMATIC NET PC-Software (All versions < V14 SP1), SIMATIC PCS 7 V8.1 (All versions), SIMATIC PCS 7 V8.

How urgent is CVE-2017-6865?

Priority 33/100. No elevated risk signals yet.

Software pages

Siemens vulnerabilities

References

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