What is CVE-2026-27661?

CVE-2026-27661 is a medium-severity vulnerability in Siemens Sinec Security Monitor, classified under CWE-1230. CVSS score: 4.3/10. Published 2026-03-10.

How severe is CVE-2026-27661?

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

Vulnerability in Siemens Sinec Security Monitor

CVE-2026-27661

A vulnerability has been identified in SINEC Security Monitor (All versions < V4.9.0). The affected application leaks confidential information in metadata, and files such as information on contributors and email address, on `SSM Server`.

EPSS: 0.000 (12.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

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

Affected products

Siemens Sinec Security Monitor — versions 0

Weakness classification (CWE)

CWE-1230

References

cert-portal.siemens.com/productcert/html/ssa-430425.html

Frequently asked questions

What is CVE-2026-27661?: CVE-2026-27661 is a medium-severity vulnerability in Siemens Sinec Security Monitor, classified under CWE-1230. CVSS score: 4.3/10. Published 2026-03-10.
How severe is CVE-2026-27661?: Medium severity. CVSS v3 base score is 4.3 out of 10.