CVE-2021-31881

Common vulnerabilities & exposures (CVE)

CVE database CVE database blogpost Release & EoL database

Published at: - 09-11-2021 01:15

Last modified: - 20-05-2022 03:15

Total changes: - 4

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 OFFER message, the DHCP client application does not validate the length of the Vendor option(s), leading to Denial-of-Service conditions. (FSMD-2021-0008)

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Low

Attack complexity

Network

Attack vector

High

Availability

None

Confidentiality

None

Integrity

None

Privileges required

Unchanged

Scope

None

User interaction

7.5

Base score

3.9

3.6

Exploitability score

Impact score

Verification logic

vendor=siemens AND product=nucleus_source_code

vendor=siemens AND product=nucleus_net

vendor=siemens AND product=capital_vstar

vendor=siemens AND product=nucleus_readystart_v3 AND versionEndExcluding=2012.08

AND

vendor=siemens AND product=apogee_modular_building_controller_firmware

vendor=siemens AND product=apogee_modular_building_controller AND version=-

AND

vendor=siemens AND product=apogee_modular_equiment_controller_firmware

vendor=siemens AND product=apogee_modular_equiment_controller AND version=-

AND

vendor=siemens AND product=apogee_pxc_compact_firmware

vendor=siemens AND product=apogee_pxc_compact AND version=-

AND

vendor=siemens AND product=apogee_pxc_modular_firmware

vendor=siemens AND product=apogee_pxc_modular AND version=-

AND

vendor=siemens AND product=talon_tc_compact_firmware

vendor=siemens AND product=talon_tc_compact AND version=-

AND

vendor=siemens AND product=talon_tc_modular_firmware

vendor=siemens AND product=talon_tc_modular AND version=-

Reference

Keywords

CVE-2021-31881

Common vulnerabilities & exposures (CVE)

Description

Common Vulnerability Scoring System (CVSS)

Verification logic

Reference

NVD

CVE-2021-31881

CVE

Common vulnerabilities & exposures

CVSS

Common vulnerability scoring system

Security

Vulnerabilities

Exposures