What is CVE-2022-43400?

CVE-2022-43400 is a critical-severity vulnerability in Siemens Siveillance Video Mobile Server, classified under Weak Authentication. CVSS score: 9.8/10. Published 2022-10-21.

How severe is CVE-2022-43400?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Auth bypass in Siemens Siveillance Video Mobile Server

CVE-2022-43400

A vulnerability has been identified in Siveillance Video Mobile Server V2022 R2 (All versions < V22.2a (80)). The mobile server component of affected applications improperly handles the log in for Active Directory accounts that are part of Administrators group. This could allow an unauthenticated remote attacker to access the application without a valid account.

Published 2022-10-21 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.010 (60.2th percentile), scored 2026-10-04.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 60th percentile — 60.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.010 · change: +0.000

Affected products

Siemens Siveillance Video Mobile Server
Siemens Siveillance Video Mobile Server V2022 R2 — versions All versions < V22.2a (80)

Weakness classification (CWE)

References

cert-portal.siemens.com/productcert/pdf/ssa-640732.pdf (Vendor Advisory)

Frequently asked questions

What is CVE-2022-43400?: CVE-2022-43400 is a critical-severity vulnerability in Siemens Siveillance Video Mobile Server, classified under Weak Authentication. CVSS score: 9.8/10. Published 2022-10-21.
How severe is CVE-2022-43400?: Critical severity. CVSS v3 base score is 9.8 out of 10.