What is CVE-2021-37193?

CVE-2021-37193 is a medium-severity vulnerability in Siemens Sinema Remote Connect Server, classified under Modification of Assumed-Immutable Data (MAID). CVSS score: 4.3/10. Published 2021-09-14.

How severe is CVE-2021-37193?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Siemens Sinema Remote Connect Server

CVE-2021-37193

A vulnerability has been identified in SINEMA Remote Connect Server (All versions < V3.0 SP2). An unauthenticated attacker in the same network of the affected system could manipulate certain parameters and set a valid user of the affected software as invalid (or vice-versa).

Published 2021-09-14 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.004 (28.6th percentile), scored 2026-10-19.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 28.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Siemens Sinema Remote Connect Server — versions All versions < V3.0 SP2
Siemens Sinema Remote Connect Server — versions 3.0

Weakness classification (CWE)

CWE-471 — Modification of Assumed-Immutable Data (MAID)

References

cert-portal.siemens.com/productcert/pdf/ssa-334944.pdf (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2021-37193?: CVE-2021-37193 is a medium-severity vulnerability in Siemens Sinema Remote Connect Server, classified under Modification of Assumed-Immutable Data (MAID). CVSS score: 4.3/10. Published 2021-09-14.
How severe is CVE-2021-37193?: Medium severity. CVSS v3 base score is 4.3 out of 10.