CVE-2021-25663
Published: Apr 22, 2021
Modified: Mar 11, 2025
CVSS v3.1
7.5
Description
A vulnerability has been identified in Capital Embedded AR Classic 431-422 (All versions), Capital Embedded AR Classic R20-11 (All versions < V2303), Nucleus NET (All versions), Nucleus ReadyStart V3 (All versions < V2017.02.4), Nucleus ReadyStart V4 (All versions < V4.1.0), Nucleus Source Code (All versions including affected IPv6 stack). The function that processes IPv6 headers does not check the lengths of extension header options, allowing attackers to put this function into an infinite loop with crafted length values.
| Vendor | Product | Versions |
|---|---|---|
Siemens | Capital Embedded AR Classic 431-422 | affected 0 - < * |
Siemens | Capital Embedded AR Classic R20-11 | affected 0 - < V2303 |
Siemens | Nucleus NET | affected All versions |
Siemens | Nucleus ReadyStart V3 | affected 0 - < V2017.02.4 |
Siemens | Nucleus ReadyStart V4 | affected 0 - < V4.1.0 |
Siemens | Nucleus Source Code | affected 0 - < * |
Weaknesses (CWE)
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
References
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