No exploitation reportedFix available

CVE-2017-12069

Q: Is CVE-2017-12069 actively exploited?

Active exploitation of CVE-2017-12069 has not been confirmed. Its EPSS score was 2.9% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2017-12069?

CVE-2017-12069 has a CVSS v3 base score of 8.2 (HIGH severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H.

No exploitation reported by the sources we read.

Published2017-08-30
WeaknessCWE-611

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

An XXE vulnerability has been identified in OPC Foundation UA .NET Sample Code before 2017-03-21 and Local Discovery Server (LDS) before 1.03.367. Among the affected products are Siemens SIMATIC PCS7 (All versions V8.1 and earlier), SIMATIC WinCC (All versions < V7.4 SP1), SIMATIC WinCC Runtime Professional (All versions < V14 SP1), SIMATIC NET PC Software, and SIMATIC IT Production Suite. By sending specially crafted packets to the OPC Discovery Server at port 4840/tcp, an attacker might cause the system to access various resources chosen by the attacker.

Timeline

dates in UTC

2017-08-3019:29CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2017-12069?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2017-12069?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Ocpfoundation local discovery server

Branch	Affected	Fixed in	Source
1.1	≤ 1.01.333.0	no fix published	NVD

Ocpfoundation ua .net

Branch	Affected	Fixed in	Source
2017.x	≤ 2017-03-21	no fix published	NVD

Siemens simatic pcs7

Branch	Affected	Fixed in	Source
8.1	≤ 8.1	no fix published	NVD

1 more product in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

ICSA-17-243-01 CISA6 known affected
Siemens OPC UA Protocol Stack Discovery Service (Update E)
SIMATIC IT Production Suite · SIMATIC NET PC Software V14 · SIMATIC PCS 7 · +3 more

Full record on NVD

Fix

Vendor fix CISA ICSA-17-243-01 · 1 productUpdate to V7.1 or later version
Vendor fix CISA ICSA-17-243-01 · 1 productUpdate to V14 SP1 Update 14 or later version
Vendor fix CISA ICSA-17-243-01 · 1 productUpdate to V14 SP1 or later version
Mitigation from the vendor CISA ICSA-17-243-01 · 6 productsTurn off the Discovery Service after commissioning or block it on the local firewall: https://support.industry.siemens.com/cs/ww/en/view/109749461
Mitigation from the vendor CISA ICSA-17-243-01 · 6 productsUse VPN for protecting network communication between cells
No fix planned, says the vendor CISA ICSA-17-243-01 · 3 productsCurrently no fix is planned

Advisories and patches

opcfoundation-onlineapplications.orgPatch · Vendor Advisory
www.siemens.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.08.2read 2026-10-23
NVDCVSS 2.06.4read 2026-10-23
NVDweakness (CWE)CWE-611read 2026-10-23
FIRST EPSSEPSS score2.9 %2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Published: 2017-08-30
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2017-12069?

Is CVE-2017-12069 actively exploited?

Active exploitation of CVE-2017-12069 has not been confirmed. Its EPSS score was 2.9% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2017-12069?

CVE-2017-12069 has a CVSS v3 base score of 8.2 (HIGH severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H.

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