CVE-2021-31881

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 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)
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.1 HIGH
ADJACENT_NETWORK
LOW
NONE
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
siemensCNA
7.1 HIGH
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 79%
VendorProductVersion
siemenscapital_vstar
*
siemensnucleus_net
*
siemensnucleus_readystart_v3
𝑥
< 2012.08
siemensnucleus_source_code
*
siemensapogee_modular_building_controller_firmware
*
siemensapogee_modular_equiment_controller_firmware
*
siemensapogee_pxc_compact_firmware
*
siemensapogee_pxc_modular_firmware
*
siemenstalon_tc_compact_firmware
*
siemenstalon_tc_modular_firmware
*
𝑥
= Vulnerable software versions