CVE-2021-37209

mediumpriority · track · 16OT risk · elevatedEPSS 0.004 · 32 %ileDEEUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
0.38% (32nd) EPSS
CVSS 4 · medium
Is it mine?
369 products
Check your exposure
Who says so?
4 sources
cnnvd · enisa_euvd · cisa_csaf_ot · siemens_psirt

EPSS · scored 2026-10-27

A vulnerability has been identified in RUGGEDCOM i800 (All versions < V4.3.8), RUGGEDCOM i801 (All versions < V4.3.8), RUGGEDCOM i802 (All versions < V4.3.8), RUGGEDCOM i803 (All versions < V4.3.8), RUGGEDCOM M2100 (All versions < V4.3.8), RUGGEDCOM M2200 (All versions < V4.3.8), RUGGEDCOM M969 (All versions < V4.3.8), RUGGEDCOM RMC30 (All versions < V4.3.8), RUGGEDCOM RMC8388 V4.X (All versions < V4.3.8), RUGGEDCOM RMC8388 V5.X (All versions < V5.7.0), RUGGEDCOM RP110 (All versions < V4.3.8), RUGGEDCOM RS1600 (All versions < V4.3.8), RUGGEDCOM RS1600F (All versions < V4.3.8), RUGGEDCOM RS1600T (All versions < V4.3.8), RUGGEDCOM RS400 (All versions < V4.3.8), RUGGEDCOM RS401 (All versions < V4.3.8), RUGGEDCOM RS416 (All versions < V4.3.8), RUGGEDCOM RS416P (All versions < V4.3.8), RUGGEDCOM RS416Pv2 V4.X (All versions < V4.3.8), RUGGEDCOM RS416Pv2 V5.X (All versions < V5.7.0), RUGGEDCOM RS416v2 V4.X (All versions < V4.3.8), RUGGEDCOM RS416v2 V5.X (All versions < V5.7.0), RUGGEDCOM RS8000 (All versions < V4.3.8), RUGGEDCOM RS8000A (All versions < V4.3.8), RUGGEDCOM RS8000H (All versions < V4.3.8), RUGGEDCOM RS8000T (All versions < V4.3.8), RUGGEDCOM RS900 (All versions < V4.3.8), RUGGEDCOM RS900 (32M) V4.X (All versions < V4.3.8), RUGGEDCOM RS900 (32M) V5.X (All versions < V5.7.0), RUGGEDCOM RS900G (All versions < V4.3.8), RUGGEDCOM RS900G (32M) V4.X (All versions < V4.3.8), RUGGEDCOM RS900G (32M) V5.X (All versions < V5.7.0), RUGGEDCOM RS900GP (All versions < V4.3.8), RUGGEDCOM RS900L (All versions < V4.3.8), RUGGEDCOM RS900M-GETS-C01 (All versions < V4.3.8), RUGGEDCOM RS900M-GETS-XX (All versions < V4.3.8), RUGGEDCOM RS900M-STND-C01 (All versions < V4.3.8), RUGGEDCOM RS900M-STND-XX (All versions < V4.3.8), RUGGEDCOM RS900W (All versions < V4.3.8), RUGGEDCOM RS910 (All versions < V4.3.8), RUGGEDCOM RS910L (All versions < V4.3.8), RUGGEDCOM RS910W (All versions < V4.3.8), RUGGEDCOM RS920L (All versions < V4.3.8), RUGGEDCOM RS920W (All versions < V4.3.8), RUGGEDCOM RS930L (All versions < V4.3.8), RUGGEDCOM RS930W (All versions < V4.3.8), RUGGEDCOM RS940G (All versions < V4.3.8), RUGGEDCOM RS969 (All versions < V4.3.8), RUGGEDCOM RSG2100 (All versions < V4.3.8), RUGGEDCOM RSG2100 (32M) V4.X (All versions < V4.3.8), RUGGEDCOM RSG2100 (32M) V5.X (All versions < V5.7.0), RUGGEDCOM RSG2100P (All versions < V4.3.8), RUGGEDCOM RSG2100P (32M) V4.X (All versions < V4.3.8), RUGGEDCOM RSG2100P (32M) V5.X (All versions < V5.7.0), RUGGEDCOM RSG2200 (All versions < V4.3.8), RUGGEDCOM RSG2288 V4.X (All versions < V4.3.8), RUGGEDCOM RSG2288 V5.X (All versions < V5.7.0), RUGGEDCOM RSG2300 V4.X (All versions < V4.3.8), RUGGEDCOM RSG2300 V5.X (All versions < V5.7.0), RUGGEDCOM RSG2300P V4.X (All versions < V4.3.8), RUGGEDCOM RSG2300P V5.X (All versions < V5.7.0), RUGGEDCOM RSG2488 V4.X (All versions < V4.3.8), RUGGEDCOM RSG2488 V5.X (All versions < V5.7.0), RUGGEDCOM RSG907R (All versions < V5.7.0), RUGGEDCOM RSG908C (All versions < V5.7.0), RUGGEDCOM RSG909R (All versions < V5.7.0), RUGGEDCOM RSG910C (All versions < V5.7.0), RUGGEDCOM RSG920P V4.X (All versions < V4.3.8), RUGGEDCOM RSG920P V5.X (All versions < V5.7.0), RUGGEDCOM RSL910 (All versions < V5.7.0), RUGGEDCOM RST2228 (All versions < V5.7.0), RUGGEDCOM RST2228P (All versions < V5.7.0), RUGGEDCOM RST916C (All versions < V5.7.0), RUGGEDCOM RST916P (All versions < V5.7.0). The SSH server on affected devices is configured to offer weak ciphers by default. This could allow an unauthorized attacker in a man-in-the-middle position to read and modify any data passed over the connection between legitimate clients and the affected device.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

02

cvss

Technical severity, 0–10. One row per scoring source.

6.7
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 3.4–6.7

v2.04mediumAV:N/AC:L/Au:S/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 8 · impact 2.9
v2.03.4lowAV:N/AC:L/Au:S/C:P/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)
v3.16.7mediumCVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:H/E:P/RL:U/RC:Csecondary · CISA US
v3.16.7mediumCVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:Hsecondary · productcert@siemens.com DEexploitability 1.2 · impact 5.5
v3.16.7mediumCVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:H/E:P/RL:U/RC:Csecondary · Siemens ProductCERT DE
v3.16.7mediumCVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:H/E:P/RL:U/RC:Csecondary · ENISA EU
v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:Nsecondary · NVD / NIST USexploitability 2.8 · impact 3.6
03

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS
04

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-311USCWE-326USCWE-326USCWE-326US
05

affected products (369)

Products and version ranges known to be affected.

showing 20 of 369
06

advisories (2)

Vendor and ecosystem advisories describing this.

  • SSA-764417SSA-764417: Weak Encryption Vulnerability in RUGGEDCOM ROS Devices2022-03-08csaf · siemens_psirtDE

    The SSH server on RUGGEDCOM ROS devices is configured to offer weak ciphers by default. This could allow an unauthorized attacker in a man-in-the-middle position to read and modify any data passed over the connection between legitimate clients and the affected device. Siemens has released new versions for the affected products and recommends to update to the latest versions.

  • ICSA-22-069-01Siemens RUGGEDCOM Devices2022-03-08icsa · cisa_csaf_otUS

    The SSH server on RUGGEDCOM ROS devices is configured to offer weak ciphers by default. This could allow an unauthorized attacker in a man-in-the-middle position to read and modify any data passed over the connection between legitimate clients and the affected device. Siemens has released new versions for the affected products and recommends to update to the latest versions.

07

also known as (3)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

cnnvdenisa_euvdcisa_csaf_otsiemens_psirtNVDCVE.orgMITRE
published 2022-03-08modified 2026-06-17
09

references (12)

External citations — patches, advisories, analysis.

scry

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