CVE-2019-19281: siemens ag simatic et 200sp open controller cpu 1515sp pc2 (incl. siplus variants) Uncontrolled Resource Consumption
Vulnerability summary
CVE-2019-19281 is a high (CVSS 7.8) Uncontrolled Resource Consumption vulnerability in siemens ag simatic et 200sp open controller cpu 1515sp pc2 (incl. siplus variants). EPSS estimates a 1.68% chance of exploitation in the next 30 days, higher than 76.5% of scored vulnerabilities.
Timeline
- 10-03-2020PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
2 scores · 1 source · 2 versionsEPSS trend
Probability
1.68%
Chance of exploitation in the next 30 days
Percentile
77%
Versus all other CVEs
30-day change
0.00 pp
From 1.68% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Siemens14 products
- simatic_et_200sp_open_controller_cpu_1515sp_pc2_firmware≥ 2.5, < 20.8
- simatic_s7-1500_cpu_1507s_firmware≥ 2.5, < 20.8
- simatic_s7-1500_cpu_1507s_f_firmware≥ 2.5, < 20.8
- simatic_s7-1500_cpu_1508s_firmware≥ 2.5, < 20.8
- simatic_s7-1500_cpu_1508s_f_firmware≥ 2.5, < 20.8
Siemens ag3 products
- 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 controllerAll versions >= V2.5 and < V20.8
2 vendors · 17 products
References
2 links- www.us-cert.gov/ics/advisories/icsa-20-042-11X Refsource MISC