CVE-2021-37206
Last modified
CVE-2021-37206 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A vulnerability has been identified in SIPROTEC 5 relays with CPU variants CP050 (All versions < V8.80), SIPROTEC 5 relays with CPU variants CP100 (All versions < V8.80), SIPROTEC 5 relays with CPU variants CP300 (All versions < V8.80). Received webpackets are not properly processed. EPSS estimates a 1.39% chance of exploitation in the next 30 days.
Description
A vulnerability has been identified in SIPROTEC 5 relays with CPU variants CP050 (All versions < V8.80), SIPROTEC 5 relays with CPU variants CP100 (All versions < V8.80), SIPROTEC 5 relays with CPU variants CP300 (All versions < V8.80). Received webpackets are not properly processed. An unauthenticated remote attacker with access to any of the Ethernet interfaces could send specially crafted packets to force a restart of the target device.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Siemens | Siprotec 5 With Cpu Variant Cp050 | < 8.80 |
| Siemens | Siprotec 5 With Cpu Variant Cp100 | < 8.80 |
| Siemens | Siprotec 5 With Cpu Variant Cp300 | < 8.80 |
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-500748.pdfPatch, Vendor Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-500748.pdfPatch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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