Vulnerability in Siemens Apogee Modular Building Controller
CVE-2021-31344
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), SIMOTICS CONNECT 400 (All versions < V1.0.0.0). ICMP echo packets with fake IP options allow sending ICMP echo reply messages to arbitrary hosts on the network. (FSMD-2021-0004)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.015 (73.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 73rd percentile — 73.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000
Affected products
- Siemens Apogee Modular Building Controller
- Siemens Apogee Modular Building Controller Firmware
- Siemens Apogee Modular Equiment Controller
- Siemens Apogee Modular Equiment Controller Firmware
- Siemens Apogee Pxc Compact
- Siemens Apogee Pxc Compact Firmware
- Siemens Apogee Pxc Modular
- Siemens Apogee Pxc Modular Firmware
- Siemens Capital Embedded Ar Classic 431-422 — versions 0
- Siemens Capital Embedded Ar Classic R20-11 — versions 0
Weakness classification (CWE)
References
- cert-portal.siemens.com/productcert/pdf/ssa-114589.pdf (Vendor Advisory)
- cert-portal.siemens.com/productcert/pdf/ssa-044112.pdf (Vendor Advisory)
- cert-portal.siemens.com/productcert/pdf/ssa-620288.pdf
- cert-portal.siemens.com/productcert/pdf/ssa-845392.pdf
- cert-portal.siemens.com/productcert/pdf/ssa-223353.pdf
- cert-portal.siemens.com/productcert/html/ssa-114589.html
- cert-portal.siemens.com/productcert/html/ssa-044112.html
- cert-portal.siemens.com/productcert/html/ssa-620288.html
- cert-portal.siemens.com/productcert/html/ssa-845392.html
- cert-portal.siemens.com/productcert/html/ssa-223353.html
Frequently asked questions
- What is CVE-2021-31344?
- CVE-2021-31344 is a medium-severity vulnerability in Siemens Apogee Modular Building Controller, classified under Access of Resource Using Incompatible Type (Type Confusion). CVSS score: 5.3/10. Published 2021-11-09.
- How severe is CVE-2021-31344?
- Medium severity. CVSS v3 base score is 5.3 out of 10.