CVE-2022-25311

Privilege escalation via cross-user browser session confusion

Published Mar 8, 2022 · Updated Apr 21, 2025

Improper privilege management in Siemens SINEC NMS before 2.0 and SINEMA Server V14 allows local users to escalate privileges. The software fails to separate privileges between users authenticated to Control and Operation through the same web browser session, creating unintended cross-user control. Exploitation requires low-privileged access, user interaction, and established SSO authentication in both interfaces; successful abuse grants higher application privileges.

CVSS severity7.3
High
EPSS probability0.53%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper privilege management in Siemens SINEC NMS before 2.0 and SINEMA Server V14 allows local users to escalate privileges. The software fails to separate privileges between users authenticated to Control and Operation through the same web browser session, creating unintended cross-user control. Exploitation requires low-privileged access, user interaction, and established SSO authentication in both interfaces; successful abuse grants higher application privileges.

The record

CVE
CVE-2022-25311
Published
Mar 8, 2022
Updated
Apr 21, 2025
Vendor
Siemens
Product
SINEC NMS
Classifications
CWE-269, T1078
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 8, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 21, 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 < V1.0.3
  2. Affected versionversion=All versions >= V1.0.3 < V2.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Siemens · SINEC NMSversion=All versions < V1.0.3; version=All versions >= V1.0.3 < V2.0
Siemens · SINEMA Serverversion=All versions

Published CVSS scores

7.3Siemens AGCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
6.5NIST NVDAV:N/AC:L/Au:S/C:P/I:P/A:P
8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/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)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-269Improper Privilege Management
T1078Valid Accounts

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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