CVE-2020-28400: siemens development/evaluation kits for profinet io: dk standard ethernet controller
Vulnerability summary
CVE-2020-28400 is a high (CVSS 8.7) vulnerability in siemens development/evaluation kits for profinet io: dk standard ethernet controller. EPSS estimates a 1.86% chance of exploitation in the next 30 days, higher than 78.8% of scored vulnerabilities.
Timeline
- 13-07-2021PublishedVulnerability first disclosed.
- 14-04-2026Last modifiedVulnerability information updated.
Description
Affected devices contain a vulnerability that allows an unauthenticated attacker to trigger a denial of service condition. The vulnerability can be triggered if a large amount of DCP reset packets are sent to the device.
CVSS metrics
5 scores · 2 sources · 3 versions- NVDNIST8.7HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- NVDNIST7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
1.86%
Chance of exploitation in the next 30 days
Percentile
79%
Versus all other CVEs
30-day change
0.00 pp
From 1.86% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Siemens200 products
- development/evaluation kits for profinet io: dk standard ethernet controllerAll versions (No fix recorded)
- development/evaluation kits for profinet io: ek-ertec 200All versions (No fix recorded)
- development/evaluation kits for profinet io: ek-ertec 200p< V4.7
- ek-ertec_200p_evaluation_kit_firmware< 4.7
- ruggedcom_rm1224_firmware< 6.4
1 vendor · 200 products · Showing 200 of 310. Use Open JSON for the complete list.
References
3 links- us-cert.cisa.gov/ics/advisories/icsa-21-194-03X Refsource MISCThird Party AdvisoryUS Government Resource