CVE-2022-43400Network attack vector

Unauthenticated application access via Active Directory login bypass

Published Oct 21, 2022 · Updated May 7, 2025

Authentication bypass in Siemens Siveillance Video Mobile Server before 22.2a (80) allows remote attackers to access the application. The mobile server improperly processes logins for Active Directory accounts in the Administrators group and accepts access without a valid account. The condition is limited to those group-associated logins; the disclosed consequence is application access beyond the authentication boundary.

CVSS severity9.8
Critical
EPSS probability0.94%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in Siemens Siveillance Video Mobile Server before 22.2a (80) allows remote attackers to access the application. The mobile server improperly processes logins for Active Directory accounts in the Administrators group and accepts access without a valid account. The condition is limited to those group-associated logins; the disclosed consequence is application access beyond the authentication boundary.

The record

CVE
CVE-2022-43400
Published
Oct 21, 2022
Updated
May 7, 2025
Vendor
Siemens
Product
Siveillance Video Mobile Server
Classifications
CWE-1390, CWE-287, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 21, 2022CVE publishedPublication date reported by the CVE source.
  2. May 7, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=All versions < V22.2a (80)

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Siemens · Siveillance Video Mobile Serverversion=All versions < V22.2a (80)

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.4Siemens ProductCERTCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L/E:P/RL:O/RC:C
9.8CISA ADP VulnrichmentCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-1390Weak Authentication
CWE-287Improper Authentication
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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