CVEvulnerability
CVE-2021-31883
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2021-11-09
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.1 HIGH — CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P
- Weaknesses
- CWE-119
Description
A vulnerability has been identified in Capital Embedded AR Classic 431-422 (All versions), Capital Embedded AR Classic R20-11 (All versions < V2303). When processing a DHCP ACK message, the DHCP client application does not validate the length of the Vendor option(s), leading to Denial-of-Service conditions. (FSMD-2021-0013)
Affected configurations
• siemens capital vstar
• siemens nucleus net
• siemens nucleus readystart v3 (< 2017.02.1)
• siemens nucleus source code
• siemens apogee modular building controller firmware
• siemens apogee modular equiment controller firmware
• siemens apogee pxc compact firmware
• siemens apogee pxc modular firmware
• siemens talon tc compact firmware
• siemens talon tc modular firmware
Related
Weakness · CWE (1)
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer weakness
References
- https://cert-portal.siemens.com/productcert/html/ssa-044112.html cert-portal.siemens.com
- https://cert-portal.siemens.com/productcert/html/ssa-114589.html cert-portal.siemens.com
- https://cert-portal.siemens.com/productcert/html/ssa-620288.html cert-portal.siemens.com
- https://cert-portal.siemens.com/productcert/pdf/ssa-044112.pdf Vendor Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-114589.pdf Vendor Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-620288.pdf cert-portal.siemens.com
- https://cert-portal.siemens.com/productcert/pdf/ssa-044112.pdf Vendor Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-114589.pdf Vendor Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-620288.pdf cert-portal.siemens.com