CVE-2021-37186
CVE-2021-37186
Vexday Risk Score
3Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS —EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
14 Sep 2021Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
A vulnerability has been identified in LOGO! CMR2020 (All versions < V2.2), LOGO! CMR2040 (All versions < V2.2), SIMATIC RTU3010C (All versions < V4.0.9), SIMATIC RTU3030C (All versions < V4.0.9), SIMATIC RTU3031C (All versions < V4.0.9), SIMATIC RTU3041C (All versions < V4.0.9). The underlying TCP/IP stack does not properly calculate the random numbers used as ISN (Initial Sequence Numbers). An adjacent attacker with network access to the LAN interface could interfere with traffic, spoof the connection and gain access to sensitive information.
Affected products
Siemens · LOGO! CMR2020Siemens · LOGO! CMR2040Siemens · SIMATIC RTU3010CSiemens · SIMATIC RTU3030CSiemens · SIMATIC RTU3031CSiemens · SIMATIC RTU3041CWant to know if your infrastructure is exposed to this?
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