CVE-2019-19281
A vulnerability has been identified in SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl....
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
7.5
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.
- Record
CVE-2019-19281- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 7.8 High
AV:N/AC:L/Au:N/C:N/I:N/A:C - Weakness
- CWE-400
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2019-19281- Weakness
- CWE-400
- Updated
- 2026-11-02
EUVDEUVD-2019-8905 No score
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.
- Record
EUVD-2019-8905- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-4cqc-hc5r-xhj6 No score
A vulnerability has been identified in SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl....
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.
- Record
GHSA-4cqc-hc5r-xhj6- Updated
- 2026-11-02
Affected products
- siemens simatic et 200sp open controller cpu 1515sp pc2 (incl. siplus variants)
- siemens simatic s7-1500 cpu family (incl. related et200 cpus and siplus variants)
- siemens simatic s7-1500 software controller
- siemens simatic et 200sp open controller cpu 1515sp pc2 firmware
- siemens simatic s7-1500 cpu 1507s f firmware
- siemens simatic s7-1500 cpu 1507s firmware
- siemens simatic s7-1500 cpu 1508s f firmware
- siemens simatic s7-1500 cpu 1508s firmware
- siemens simatic s7-1500 cpu 1511-1 pn firmware
- siemens simatic s7-1500 cpu 1513-1 pn firmware
- siemens simatic s7-1500 cpu 1515-2 pn firmware
- siemens simatic s7-1500 cpu 1516-3 dp firmware
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- siemens simatic s7-1500 cpu 1516-3 pn firmware
- siemens simatic s7-1500 cpu 1517-3 dp firmware
- siemens simatic s7-1500 cpu 1517-3 pn firmware
- siemens simatic s7-1500 cpu 1518-4 dp firmware
- siemens simatic s7-1500 cpu 1518-4 pn firmware
- siemens ag simatic et 200sp open controller cpu 1515sp pc2 (incl. siplus variants)
- siemens ag simatic s7-1500 cpu family (incl. related et200 cpus and siplus variants)
- siemens ag simatic s7-1500 software controller
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| aliases, products | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2019-19281 is a high vulnerability (CVSS 7.5) in Siemens Simatic Et 200sp Open Controller Cpu 1515sp Pc2 (incl. Siplus Variants), published March 10, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.47%, the 73rd percentile. No source names a fixed version.