CVE-2021-31338

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-08-19 · updated 2026-06-17
Weakness: CWE-15

Description

A vulnerability has been identified in SINEMA Remote Connect Client (All versions < V3.0 SP1). Affected devices allow to modify configuration settings over an unauthenticated channel. This could allow a local attacker to escalate privileges and execute own code on the device.

Affected products

Siemens SINEMA Remote Connect: before 3.0; 3.0 — fixed in 3.0

How to fix

Upgrade to a fixed version: Siemens SINEMA Remote Connect 3.0. Check the vendor advisory for mitigations.

References

https://cert-portal.siemens.com/productcert/pdf/ssa-816035.pdf
https://cert-portal.siemens.com/productcert/pdf/ssa-816035.pdf

Get alerted when CVE-2021-31338 or the next vulnerability affects your stack