Vulnerability Details CVE-2021-31889
A vulnerability has been identified in Capital Embedded AR Classic 431-422 (All versions), Capital Embedded AR Classic R20-11 (All versions < V2303), PLUSCONTROL 1st Gen (All versions), SIMOTICS CONNECT 400 (All versions < V0.5.0.0). Malformed TCP packets with a corrupted SACK option leads to Information Leaks and Denial-of-Service conditions. (FSMD-2021-0015)
Exploit prediction scoring system (EPSS) score
EPSS Score 0.007
EPSS Ranking 71.1%
CVSS Severity
CVSS v3 Score 7.5
CVSS v2 Score 6.4
References
- https://cert-portal.siemens.com/productcert/html/ssa-044112.html
- https://cert-portal.siemens.com/productcert/html/ssa-114589.html
- https://cert-portal.siemens.com/productcert/html/ssa-223353.html
- https://cert-portal.siemens.com/productcert/html/ssa-620288.html
- https://cert-portal.siemens.com/productcert/html/ssa-845392.html
- https://cert-portal.siemens.com/productcert/pdf/ssa-044112.pdf
- https://cert-portal.siemens.com/productcert/pdf/ssa-114589.pdf
- https://cert-portal.siemens.com/productcert/pdf/ssa-223353.pdf
- https://cert-portal.siemens.com/productcert/pdf/ssa-620288.pdf
- https://cert-portal.siemens.com/productcert/pdf/ssa-845392.pdf
- https://cert-portal.siemens.com/productcert/pdf/ssa-044112.pdf
- https://cert-portal.siemens.com/productcert/pdf/ssa-114589.pdf
- https://cert-portal.siemens.com/productcert/pdf/ssa-223353.pdf
- https://cert-portal.siemens.com/productcert/pdf/ssa-620288.pdf
- https://cert-portal.siemens.com/productcert/pdf/ssa-845392.pdf
Products affected by CVE-2021-31889
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cpe:2.3:a:siemens:capital_vstar:-
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cpe:2.3:a:siemens:nucleus_net:-
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cpe:2.3:a:siemens:nucleus_net:5.2
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cpe:2.3:a:siemens:nucleus_readystart_v3:2013.08
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cpe:2.3:a:siemens:nucleus_source_code:-
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cpe:2.3:h:siemens:apogee_modular_building_controller:-
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cpe:2.3:h:siemens:apogee_modular_equiment_controller:-
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cpe:2.3:h:siemens:apogee_pxc_compact:-
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cpe:2.3:h:siemens:apogee_pxc_modular:-
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cpe:2.3:h:siemens:talon_tc_compact:-
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cpe:2.3:h:siemens:talon_tc_modular:-
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cpe:2.3:o:siemens:apogee_modular_building_controller_firmware:-
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cpe:2.3:o:siemens:apogee_modular_building_controller_firmware:2.8.2
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cpe:2.3:o:siemens:apogee_modular_equiment_controller_firmware:-
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cpe:2.3:o:siemens:apogee_modular_equiment_controller_firmware:2.8.2
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cpe:2.3:o:siemens:apogee_pxc_compact_firmware:-
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cpe:2.3:o:siemens:apogee_pxc_compact_firmware:2.8.19
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cpe:2.3:o:siemens:apogee_pxc_compact_firmware:3.5.4
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cpe:2.3:o:siemens:apogee_pxc_modular_firmware:-
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cpe:2.3:o:siemens:apogee_pxc_modular_firmware:2.8.19
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cpe:2.3:o:siemens:apogee_pxc_modular_firmware:3.5.4
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cpe:2.3:o:siemens:talon_tc_compact_firmware:-
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cpe:2.3:o:siemens:talon_tc_compact_firmware:3.5.4
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cpe:2.3:o:siemens:talon_tc_modular_firmware:-
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cpe:2.3:o:siemens:talon_tc_modular_firmware:3.5.4