CVE-2021-31337

Description

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).

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.62%
Third-Party Advisory cisa.gov
Affected: n/a SINAMICS Medium Voltage Products
Published at:
Updated at:

References

Link Tags
https://us-cert.cisa.gov/ics/advisories/icsa-21-131-04 us government resource not applicable third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-31337?
CVE-2021-31337 has been scored as a critical severity vulnerability.
How to fix CVE-2021-31337?
To fix CVE-2021-31337, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-31337 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-31337 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-31337?
CVE-2021-31337 affects n/a SINAMICS Medium Voltage Products.
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