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)

No CVSS v4.0

Attack Vector Adjacent Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact None

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.01414.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Siemens Capital Embedded AR Classic 431-422 unknown
Version Status Constraints
0 affected < *
Siemens Capital Embedded AR Classic R20-11 unknown
Version Status Constraints
0 affected < V2303

Configuration 1 [-]

OR cpe:2.3:a:siemens:capital_vstar:*:*:*:*:*:*:*:*
cpe:2.3:a:siemens:nucleus_net:*:*:*:*:*:*:*:*
cpe:2.3:a:siemens:nucleus_readystart_v3:*:*:*:*:*:*:*:*
cpe:2.3:a:siemens:nucleus_source_code:*:*:*:*:*:*:*:*

Configuration 2 [-]

AND
cpe:2.3:o:siemens:apogee_modular_building_controller_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:siemens:apogee_modular_building_controller:-:*:*:*:*:*:*:*

Configuration 3 [-]

AND
cpe:2.3:o:siemens:apogee_modular_equiment_controller_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:siemens:apogee_modular_equiment_controller:-:*:*:*:*:*:*:*

Configuration 4 [-]

AND
cpe:2.3:o:siemens:apogee_pxc_compact_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:siemens:apogee_pxc_compact:-:*:*:*:*:*:*:*

Configuration 5 [-]

AND
cpe:2.3:o:siemens:apogee_pxc_modular_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:siemens:apogee_pxc_modular:-:*:*:*:*:*:*:*

Configuration 6 [-]

AND
cpe:2.3:o:siemens:talon_tc_compact_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:siemens:talon_tc_compact:-:*:*:*:*:*:*:*

Configuration 7 [-]

AND
cpe:2.3:o:siemens:talon_tc_modular_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:siemens:talon_tc_modular:-:*:*:*:*:*:*:*

Configuration 8 [-]

AND
cpe:2.3:o:siemens:apogee_modular_building_controller_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:siemens:apogee_modular_building_controller:-:*:*:*:*:*:*:*

No data.

No data.

Project Subscriptions

Vendors Products
Siemens Subscribe
Apogee Modular Building Controller Subscribe
Apogee Modular Building Controller Firmware Subscribe
Apogee Modular Equiment Controller Subscribe
Apogee Modular Equiment Controller Firmware Subscribe
Apogee Pxc Compact Subscribe
Apogee Pxc Compact Firmware Subscribe
Apogee Pxc Modular Subscribe
Apogee Pxc Modular Firmware Subscribe
Capital Vstar Subscribe
Nucleus Net Subscribe
Nucleus Readystart V3 Subscribe
Nucleus Source Code Subscribe
Talon Tc Compact Subscribe
Talon Tc Compact Firmware Subscribe
Talon Tc Modular Subscribe
Talon Tc Modular Firmware Subscribe
Advisories
Source ID Title
EUVD EUVD EUVD-2021-18758 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)
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://cert-portal.siemens.com/productcert/html/ssa-044112.html cve-icon cve-icon
https://cert-portal.siemens.com/productcert/html/ssa-114589.html cve-icon cve-icon
https://cert-portal.siemens.com/productcert/html/ssa-620288.html cve-icon cve-icon
https://cert-portal.siemens.com/productcert/pdf/ssa-044112.pdf cve-icon cve-icon
https://cert-portal.siemens.com/productcert/pdf/ssa-114589.pdf cve-icon cve-icon
https://cert-portal.siemens.com/productcert/pdf/ssa-620288.pdf cve-icon cve-icon
History

Tue, 08 Oct 2024 08:45:00 +0000

Type Values Removed Values Added
Description A vulnerability has been identified in APOGEE MBC (PPC) (BACnet) (All versions), APOGEE MBC (PPC) (P2 Ethernet) (All versions), APOGEE MEC (PPC) (BACnet) (All versions), APOGEE MEC (PPC) (P2 Ethernet) (All versions), APOGEE PXC Compact (BACnet) (All versions < V3.5.4), APOGEE PXC Compact (P2 Ethernet) (All versions < V2.8.19), APOGEE PXC Modular (BACnet) (All versions < V3.5.4), APOGEE PXC Modular (P2 Ethernet) (All versions < V2.8.19), Capital VSTAR (All versions with enabled Ethernet options), Desigo PXC00-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC00-U (All versions >= V2.3 and < V6.30.016), Desigo PXC001-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC100-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC12-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC128-U (All versions >= V2.3 and < V6.30.016), Desigo PXC200-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC22-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC22.1-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC36.1-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC50-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC64-U (All versions >= V2.3 and < V6.30.016), Desigo PXM20-E (All versions >= V2.3 and < V6.30.016), Nucleus NET (All versions), Nucleus ReadyStart V3 (All versions < V2017.02.4), Nucleus Source Code (All versions), TALON TC Compact (BACnet) (All versions < V3.5.4), TALON TC Modular (BACnet) (All versions < V3.5.4). 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) 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)
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

 cvssV3_1

{'score': 7.1, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: siemens

Published:

Updated: 2025-03-11T09:47:43.750Z

Reserved: 2021-04-29T00:00:00

Link: CVE-2021-31883

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-11-09T12:15:09.383

Modified: 2024-11-21T06:06:25.437

Link: CVE-2021-31883

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses