CVE-2019-19281

HIGH
7.5
CVSS Score
Published: March 10, 2020 at 07:16 PM UTC
Updated: June 17, 2026 at 02:26 AM UTC
30 products affected across 1 vendorSIMATIC S7-1500 CPU 1511-1 Pn FirmwareSIMATIC S7-1500 CPU 1515-2 Pn FirmwareSIMATIC S7-1500 CPU 1513-1 Pn Firmware

Using SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) by Siemens AG?

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Severity
HIGH7.5
Exploit prediction
EPSS 2%

Description

A vulnerability has been identified in SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) (All versions >= V2.5 and < V20.8), SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions >= V2.5 and < V2.8), SIMATIC S7-1500 Software Controller (All versions >= V2.5 and < V20.8). Affected devices contain a vulnerability that allows an unauthenticated attacker to trigger a Denial-of-Service condition. The vulnerability can be triggered if specially crafted UDP packets are sent to the device. The security vulnerability could be exploited by an attacker with network access to the affected systems. Successful exploitation requires no system privileges and no user interaction. An attacker could use the vulnerability to compromise the device availability.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

2.5 ≤ v < 20.8
Affected range stops below 20.8, so it looks safe — our inference, not a vendor statement
siemens-simatic-et-200sp-open-controller-cpu-1515sp-pc2 (same device)
2.5 ≤ v < 20.8
Affected range stops below 20.8, so it looks safe — our inference, not a vendor statement
siemens-simatic-s7-1500-cpu-1507s-f (same device)
2.5 ≤ v < 20.8
Affected range stops below 20.8, so it looks safe — our inference, not a vendor statement
siemens-simatic-s7-1500-cpu-1507s (same device)
2.5 ≤ v < 20.8
Affected range stops below 20.8, so it looks safe — our inference, not a vendor statement
siemens-simatic-s7-1500-cpu-1508s-f (same device)
2.5 ≤ v < 20.8
Affected range stops below 20.8, so it looks safe — our inference, not a vendor statement
siemens-simatic-s7-1500-cpu-1508s (same device)
2.5 ≤ v < 2.8
Affected range stops below 2.8, so it looks safe — our inference, not a vendor statement
siemens-simatic-s7-1500-cpu-1511-1-pn (same device)
2.5 ≤ v < 2.8
Affected range stops below 2.8, so it looks safe — our inference, not a vendor statement
siemens-simatic-s7-1500-cpu-1513-1-pn (same device)
2.5 ≤ v < 2.8
Affected range stops below 2.8, so it looks safe — our inference, not a vendor statement
siemens-simatic-s7-1500-cpu-1515-2-pn (same device)
2.5 ≤ v < 2.8
Affected range stops below 2.8, so it looks safe — our inference, not a vendor statement
siemens-simatic-s7-1500-cpu-1516-3-dp (same device)
2.5 ≤ v < 2.8
Affected range stops below 2.8, so it looks safe — our inference, not a vendor statement
siemens-simatic-s7-1500-cpu-1516-3-pn (same device)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-400

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