CVE-2021-31340
Siemens · published 2021-06-08
Source record Collected from the National Vulnerability Database (NVD)
Description
Description by Siemens AG via the CVE Program.
A vulnerability has been identified in SIMATIC RF166C (All versions > V1.1 and < V1.3.2), SIMATIC RF185C (All versions > V1.1 and < V1.3.2), SIMATIC RF186C (All versions > V1.1 and < V1.3.2), SIMATIC RF186CI (All versions > V1.1 and < V1.3.2), SIMATIC RF188C (All versions > V1.1 and < V1.3.2), SIMATIC RF188CI (All versions > V1.1 and < V1.3.2), SIMATIC RF360R (All versions < V2.0), SIMATIC Reader RF610R CMIIT (All versions > V3.0 < V4.0), SIMATIC Reader RF610R ETSI (All versions > V3.0 < V4.0), SIMATIC Reader RF610R FCC (All versions > V3.0 < V4.0), SIMATIC Reader RF615R CMIIT (All versions > V3.0 < V4.0), SIMATIC Reader RF615R ETSI (All versions > V3.0 < V4.0), SIMATIC Reader RF615R FCC (All versions > V3.0 < V4.0), SIMATIC Reader RF650R ARIB (All versions > V3.0 < V4.0), SIMATIC Reader RF650R CMIIT (All versions > V3.0 < V4.0), SIMATIC Reader RF650R ETSI (All versions > V3.0 < V4.0), SIMATIC Reader RF650R FCC (All versions > V3.0 < V4.0), SIMATIC Reader RF680R ARIB (All versions > V3.0 < V4.0), SIMATIC Reader RF680R CMIIT (All versions > V3.0 < V4.0), SIMATIC Reader RF680R ETSI (All versions > V3.0 < V4.0), SIMATIC Reader RF680R FCC (All versions > V3.0 < V4.0), SIMATIC Reader RF685R ARIB (All versions > V3.0 < V4.0), SIMATIC Reader RF685R CMIIT (All versions > V3.0 < V4.0), SIMATIC Reader RF685R ETSI (All versions > V3.0 < V4.0), SIMATIC Reader RF685R FCC (All versions > V3.0 < V4.0). Affected devices do not properly handle large numbers of incoming connections. An attacker may leverage this to cause a Denial-of-Service situation.
Status at the source
- NVD status: Modified
Affected products, as the source lists them
| Vendor | Product | Versions |
|---|---|---|
| Siemens | SIMATIC RF166C | All versions > V1.1 and < V1.3.2: affected |
| Siemens | SIMATIC RF185C | All versions > V1.1 and < V1.3.2: affected |
| Siemens | SIMATIC RF186C | All versions > V1.1 and < V1.3.2: affected |
| Siemens | SIMATIC RF186CI | All versions > V1.1 and < V1.3.2: affected |
| Siemens | SIMATIC RF188C | All versions > V1.1 and < V1.3.2: affected |
| Siemens | SIMATIC RF188CI | All versions > V1.1 and < V1.3.2: affected |
| Siemens | SIMATIC RF360R | All versions < V2.0: affected |
| Siemens | SIMATIC Reader RF610R CMIIT | All versions > V3.0 < V4.0: affected |
| Siemens | SIMATIC Reader RF610R ETSI | All versions > V3.0 < V4.0: affected |
| Siemens | SIMATIC Reader RF610R FCC | All versions > V3.0 < V4.0: affected |
| Siemens | SIMATIC Reader RF615R CMIIT | All versions > V3.0 < V4.0: affected |
| Siemens | SIMATIC Reader RF615R ETSI | All versions > V3.0 < V4.0: affected |
| Siemens | SIMATIC Reader RF615R FCC | All versions > V3.0 < V4.0: affected |
| Siemens | SIMATIC Reader RF650R ARIB | All versions > V3.0 < V4.0: affected |
| Siemens | SIMATIC Reader RF650R CMIIT | All versions > V3.0 < V4.0: affected |
| Siemens | SIMATIC Reader RF650R ETSI | All versions > V3.0 < V4.0: affected |
| Siemens | SIMATIC Reader RF650R FCC | All versions > V3.0 < V4.0: affected |
| Siemens | SIMATIC Reader RF680R ARIB | All versions > V3.0 < V4.0: affected |
| Siemens | SIMATIC Reader RF680R CMIIT | All versions > V3.0 < V4.0: affected |
| Siemens | SIMATIC Reader RF680R ETSI | All versions > V3.0 < V4.0: affected |
| Siemens | SIMATIC Reader RF680R FCC | All versions > V3.0 < V4.0: affected |
| Siemens | SIMATIC Reader RF685R ARIB | All versions > V3.0 < V4.0: affected |
| Siemens | SIMATIC Reader RF685R CMIIT | All versions > V3.0 < V4.0: affected |
| Siemens | SIMATIC Reader RF685R ETSI | All versions > V3.0 < V4.0: affected |
| Siemens | SIMATIC Reader RF685R FCC | All versions > V3.0 < V4.0: affected |
Products named in NVD's CPE match criteria (25)
cpe:2.3:o:siemens:simatic_rf166c_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:siemens:simatic_rf185c_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:siemens:simatic_rf186c_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:siemens:simatic_rf186ci_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:siemens:simatic_rf188c_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:siemens:simatic_rf188ci_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:siemens:simatic_rf360r_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:siemens:simatic_reader_rf610r_cmiit_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:siemens:simatic_reader_rf610r_etsi_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:siemens:simatic_reader_rf610r_fcc_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:siemens:simatic_reader_rf615r_cmiit_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:siemens:simatic_reader_rf615r_etsi_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:siemens:simatic_reader_rf615r_fcc_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:siemens:simatic_reader_rf650r_cmiit_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:siemens:simatic_reader_rf650r_etsi_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:siemens:simatic_reader_rf650r_fcc_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:siemens:simatic_reader_rf650r_arib_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:siemens:simatic_reader_rf680r_cmiit_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:siemens:simatic_reader_rf680r_etsi_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:siemens:simatic_reader_rf680r_fcc_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:siemens:simatic_reader_rf680r_arib_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:siemens:simatic_reader_rf685r_cmiit_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:siemens:simatic_reader_rf685r_etsi_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:siemens:simatic_reader_rf685r_fcc_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:siemens:simatic_reader_rf685r_arib_firmware:*:*:*:*:*:*:*:*
DeSpy has not checked any unit, hardware revision or firmware. A product missing here is not a statement that it is unaffected.
Scores, as their sources published them
- CVSS 3.1: 7.5 HIGH — as published by NIST (Primary)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0: 5 MEDIUM — as published by NIST (Primary)
AV:N/AC:L/Au:N/C:N/I:N/A:P
DeSpy does not score records. These are the sources' own values.
Weaknesses
Sources
References the source lists
- https://cert-portal.siemens.com/productcert/pdf/ssa-787292.pdf
- https://cert-portal.siemens.com/productcert/pdf/ssa-787292.pdf
Source dates: published 2021-06-08, last changed 2026-06-17. DeSpy's copy of this version is dated 2026-09-28.
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