by Kastro
Paper/Archive/CVE-2021-31337

CVE-2021-31337

siemens — The Telnet service of the SIMATIC HMI Comfort Panels system component in affected products does not require authentication, which may all…

EPSS 2%CVSS 9.8
critical.is priorityof 100
45
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 76.9.769 × 2015.4No public exploit+100.0SSVC exploitation: unknown+100.0
Description · from the CVE record

The Telnet service of the SIMATIC HMI Comfort Panels system component in affected products does not require authentication, which may allow a remote attacker to gain access to the device if the service is enabled. Telnet is disabled by default on the SINAMICS Medium Voltage Products (SINAMICS SL150: All versions, SINAMICS SM150: All versions, SINAMICS SM150i: All versions).

Affected

ProductAffectedFixed inSource
SINAMICS Medium Voltage ProductsSINAMICS SL150: All versions, SINAMICS SM150: All versions, SINAMICS SM150i: All versions–CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

refus-cert.cisa.gov/ics/advisories/icsa-21-131-04