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CVE-2019-18336

Published: Mar 10, 2020Updated: Jun 2, 2026 Sources: CVE List NVD BDU csafCWE-400
7.5HIGH
NVD MITRE
EPSS Score
1.7%
Top 24.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

Description

A vulnerability has been identified in SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions < V3.X.17), SIMATIC TDC CP51M1 (All versions < V1.1.8), SIMATIC TDC CPU555 (All versions < V1.1.1), SINUMERIK 840D sl (All versions < V4.8.6), SINUMERIK 840D sl (All versions < V4.94). Specially crafted packets sent to port 102/tcp (Profinet) could cause the affected device to go into defect mode. A restart is required in order to recover the system. Successful exploitation requires an attacker to have network access to port 102/tcp, with no authentication. No user interation is required. At the time of advisory publication no public exploitation of this security vulnerability was known.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-400

Affected Products

Siemens AG
commercial·DEaka siemens
SINUMERIK 840D sl
ICS / OT / IoT
SIMATIC S7-300 CPU family
ICS / OT / IoT
SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants)
ICS / OT / IoT
SIMATIC TDC CP51M1
ICS / OT / IoT
SIMATIC TDC CPU555
ICS / OT / IoT
simatic s7-300 cpu firmware
ICS / OT / IoT
simatic s7-300 cpu 312 ifm firmware
ICS / OT / IoT
simatic s7-300 cpu 313 firmware
ICS / OT / IoT
and 9 more affected products View all →

Exploitability

Official Patch Available
Is your org exposed to CVE-2019-18336?We can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

1 technique
Impact
View detailed technique mapping

References

https://cert-portal.siemens.com/productcert/pdf/ssa-508982.pdf
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/html/ssa-508982.html
cert-portal.siemens.com
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2020/icsa-20-070-02.json
raw.githubusercontent.com
and 7 more references View all →

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