CVE-2021-31338

Name: CVE-2021-31338
Creator: NVD / NIST
Published: 2021-08-19T16:15:12.243+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.24%

Last modified Jun 17, 2026

CVE-2021-31338 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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. EPSS estimates a 0.24% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

0.24%

15.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-15

Affected Software

Vendor	Product	Versions
Siemens	Sinema Remote Connect	< 3.0
Siemens	Sinema Remote Connect	3.0

References

https://cert-portal.siemens.com/productcert/pdf/ssa-816035.pdfPatch, Vendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-816035.pdfPatch, Vendor Advisory

Timeline

Published: Aug 19, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-31338?

How severe is CVE-2021-31338?

CVE-2021-31338 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.24% probability of exploitation in the next 30 days.

How do I fix CVE-2021-31338?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-31338?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST