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NVD / CVE Program· CNA siemens

CVE-2019-13945: A vulnerability has been identified in SIMATIC S7-1200 CPU family (incl.

Noroxi assessment

Priority: Monitor (action score 27/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.52% (FIRST EPSS).
  • Physical access to the device is required. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • According to the record, no fixed version is available yet.
  • Mentioned 2 times in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

A vulnerability has been identified in SIMATIC S7-1200 CPU family (incl. SIPLUS variants) (All versions), SIMATIC S7-1200 CPU family < V4.x (incl. SIPLUS variants) (All versions), SIMATIC S7-1200 CPU family V4.x (incl. SIPLUS variants) (All versions with Function State (FS) < 11), SIMATIC S7-200 SMART CPU CR20s (6ES7 288-1CR20-0AA1) (All versions <= V2.3.0 and Function State (FS) <= 3), SIMATIC S7-200 SMART CPU CR30s (6ES7 288-1CR30-0AA1) (All versions <= V2.3.0 and Function State (FS) <= 3), SIMATIC S7-200 SMART CPU CR40 (6ES7 288-1CR40-0AA0) (All versions <= V2.2.2 and Function State (FS) <= 8), SIMATIC S7-200 SMART CPU CR40s (6ES7 288-1CR40-0AA1) (All versions <= V2.3.0 and Function State (FS) <= 3), SIMATIC S7-200 SMART CPU CR60 (6ES7 288-1CR60-0AA0) (All versions <= V2.2.2 and Function State (FS) <= 10), SIMATIC S7-200 SMART CPU CR60s (6ES7 288-1CR60-0AA1) (All versions <= V2.3.0 and Function State (FS) <= 3), SIMATIC S7-200 SMART CPU SR20 (6ES7 288-1SR20-0AA0) (All versions <= V2.5.0 and Function State (FS) <= 11), SIMATIC S7-200 SMART CPU SR30 (6ES7 288-1SR30-0AA0) (All versions <= V2.5.0 and Function State (FS) <= 10), SIMATIC S7-200 SMART CPU SR40 (6ES7 288-1SR40-0AA0) (All versions <= V2.5.0 and Function State (FS) <= 10), SIMATIC S7-200 SMART CPU SR60 (6ES7 288-1SR60-0AA0) (All versions <= V2.5.0 and Function State (FS) <= 12), SIMATIC S7-200 SMART CPU ST20 (6ES7 288-1ST20-0AA0) (All versions <= V2.5.0 and Function State (FS) <= 9), SIMATIC S7-200 SMART CPU ST30 (6ES7 288-1ST30-0AA0) (All versions <= V2.5.0 and Function State (FS) <= 9), SIMATIC S7-200 SMART CPU ST40 (6ES7 288-1ST40-0AA0) (All versions <= V2.5.0 and Function State (FS) <= 8), SIMATIC S7-200 SMART CPU ST60 (6ES7 288-1ST60-0AA0) (All versions <= V2.5.0 and Function State (FS) <= 8), SIMATIC S7-200 SMART CPU family (All versions). There is an access mode used during manufacturing of the affected devices that allows additional diagnostic functionality. The security vulnerability could be exploited by an attacker with physical access to the UART interface during boot process.

MediumCVSS 6.8 · v3.1—No exploit No fix recorded
Published
Dec 12, 2019
Updated
Jun 16, 2026
EPSS
0.5% · 44th percentile

Report tools

JSON

Action score

27

Monitor

Low priority for now.

CVSS
27 / 40 · 6.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.5%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2019-13945

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
siemenssimatic s7-1200 firmware
siemenssimatic s7-1200
siemenss7-200 smart firmware
siemenss7-200 smart
siemenssimatic s7-200 smart cpu st20 firmware
siemenssimatic s7-200 smart cpu st20
siemenssimatic s7-200 smart cpu st30 firmware
siemenssimatic s7-200 smart cpu st30
siemenssimatic s7-200 smart cpu st40 firmware
siemenssimatic s7-200 smart cpu st40
siemenssimatic s7-200 smart cpu st60 firmware
siemenssimatic s7-200 smart cpu st60

and 20 more

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • siemens s7-200 smart firmwareall versions
  • siemens simatic s7-1200 firmwareall versions
  • siemens simatic s7-200 smart cpu cr20s firmwareup to 2.3.0 inclusive
  • siemens simatic s7-200 smart cpu cr30s firmwareup to 2.3.0 inclusive
  • siemens simatic s7-200 smart cpu cr40 firmwareup to 2.2.2 inclusive
  • siemens simatic s7-200 smart cpu cr40s firmwareup to 2.3.0 inclusive
  • siemens simatic s7-200 smart cpu cr60 firmwareup to 2.2.2 inclusive
  • siemens simatic s7-200 smart cpu cr60s firmwareup to 2.3.0 inclusive
  • siemens simatic s7-200 smart cpu sr20 firmwareup to 2.5.0 inclusive
  • siemens simatic s7-200 smart cpu sr30 firmwareup to 2.5.0 inclusive
  • siemens simatic s7-200 smart cpu sr40 firmwareup to 2.5.0 inclusive
  • siemens simatic s7-200 smart cpu sr60 firmwareup to 2.5.0 inclusive
  • siemens simatic s7-200 smart cpu st20 firmwareup to 2.5.0 inclusive
  • siemens simatic s7-200 smart cpu st30 firmwareup to 2.5.0 inclusive
  • siemens simatic s7-200 smart cpu st40 firmwareup to 2.5.0 inclusive
  • siemens simatic s7-200 smart cpu st60 firmwareup to 2.5.0 inclusive

Versions reported by the vendor

Affected version ranges reported by the assigning authority (siemens). Independent of NVD's CPE analysis and usually ahead of it.

  • Siemens AG SIMATIC S7-1200 CPU family (incl. SIPLUS variants)

    • All versionsaffected

  • Siemens AG SIMATIC S7-1200 CPU family < V4.x (incl. SIPLUS variants)

    • All versionsaffected

  • Siemens AG SIMATIC S7-1200 CPU family V4.x (incl. SIPLUS variants)

    • All versions with Function State (FS) < 11affected

  • Siemens AG SIMATIC S7-200 SMART CPU CR20s (6ES7 288-1CR20-0AA1)

    • All versions <= V2.3.0 and Function State (FS) <= 3affected

  • Siemens AG SIMATIC S7-200 SMART CPU CR30s (6ES7 288-1CR30-0AA1)

    • All versions <= V2.3.0 and Function State (FS) <= 3affected

  • Siemens AG SIMATIC S7-200 SMART CPU CR40 (6ES7 288-1CR40-0AA0)

    • All versions <= V2.2.2 and Function State (FS) <= 8affected

  • Siemens AG SIMATIC S7-200 SMART CPU CR40s (6ES7 288-1CR40-0AA1)

    • All versions <= V2.3.0 and Function State (FS) <= 3affected

  • Siemens AG SIMATIC S7-200 SMART CPU CR60 (6ES7 288-1CR60-0AA0)

    • All versions <= V2.2.2 and Function State (FS) <= 10affected

  • Siemens AG SIMATIC S7-200 SMART CPU CR60s (6ES7 288-1CR60-0AA1)

    • All versions <= V2.3.0 and Function State (FS) <= 3affected

  • Siemens AG SIMATIC S7-200 SMART CPU family

    • All versionsaffected

  • Siemens AG SIMATIC S7-200 SMART CPU SR20 (6ES7 288-1SR20-0AA0)

    • All versions <= V2.5.0 and Function State (FS) <= 11affected

  • Siemens AG SIMATIC S7-200 SMART CPU SR30 (6ES7 288-1SR30-0AA0)

    • All versions <= V2.5.0 and Function State (FS) <= 10affected

Same product

siemens: all records

Other highest-scoring records for the same primary product.

  • CVE-2013-2780Siemens SIMATIC S7-1200 PLCs 2.x and 3.x allow remote attackers to cause a denial of service (defect-mode transition and control outage) via
    32Monitor
  • CVE-2013-0700Siemens SIMATIC S7-1200 PLCs 2.x and 3.x allow remote attackers to cause a denial of service (defect-mode transition and control outage) via
    32Monitor
  • CVE-2018-13815A vulnerability has been identified in SIMATIC S7-1200 (All versions), SIMATIC S7-1500 (All Versions < V2.6).
    31Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2012-3037Sep 25, 2012 · The Siemens SIMATIC S7-1200 2.x PLC does not properly protect the private key of the SIMATIC CONTROLLER Certification Authority certificate,
    17Monitor
  • ← EarlierCVE-2012-3040Oct 10, 2012 · Cross-site scripting (XSS) vulnerability in the web server on Siemens SIMATIC S7-1200 PLCs 2.x through 3.0.1 allows remote attackers to inje
    18Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Technical details

Attack conditions

  • Physical access to the device is required.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Physical
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-749 · Exposed Dangerous Method or Function

CVSS vector

CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

ATT&CK techniques

—

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records