Resource exhaustion in Siemens Simatic_s7-300_cpu_312
CVE-2020-15783
A vulnerability has been identified in SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions), SIMATIC TDC CPU555 (All versions), SINUMERIK 840D sl (All versions). Sending multiple specially crafted packets…
Vulnerability class: DoS (Denial of Service)
EPSS: 0.002 (40.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Siemens Simatic_s7-300_cpu_312
- Siemens Simatic_s7-300_cpu_312_firmware
- Siemens Simatic_s7-300_cpu_314
- Siemens Simatic_s7-300_cpu_314_firmware
- Siemens Simatic_s7-300_cpu_315-2_dp
- Siemens Simatic_s7-300_cpu_315-2_dp_firmware
- Siemens Simatic_s7-300_cpu_315-2_pn
- Siemens Simatic_s7-300_cpu_315-2_pn_firmware
- Siemens Simatic_s7-300_cpu_315f-2_dp
- Siemens Simatic_s7-300_cpu_315f-2_dp_firmware
Weakness classification (CWE)
Public proof-of-concept exploits
References
- productcert@siemens.com (x_refsource_MISC, Mitigation, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-15783?
- CVE-2020-15783 is a high-severity vulnerability in Siemens Simatic_s7-300_cpu_312, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2020-11-12.
- How severe is CVE-2020-15783?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2020-15783 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.