CVE-2022-29877Network attack vector

Unauthenticated configuration access

Published May 10, 2022 · Updated Aug 3, 2024

Missing authentication in Siemens SICAM P850 and SICAM P855 before V3.00 allows remote attackers to read configuration details and submit network-setting changes via the web interface. The web server exposes its configuration area without checking authentication, allowing retrieval of internal settings and acceptance of reconfiguration requests. Network-setting changes do not take effect unless an authenticated administrator activates them, limiting direct impact to disclosure and staged integrity changes.

CVSS severity6.5
Medium
EPSS probability0.65%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authentication in Siemens SICAM P850 and SICAM P855 before V3.00 allows remote attackers to read configuration details and submit network-setting changes via the web interface. The web server exposes its configuration area without checking authentication, allowing retrieval of internal settings and acceptance of reconfiguration requests. Network-setting changes do not take effect unless an authenticated administrator activates them, limiting direct impact to disclosure and staged integrity changes.

The record

CVE
CVE-2022-29877
Published
May 10, 2022
Updated
Aug 3, 2024
Vendor
Siemens
Product
SICAM P850
Classifications
CWE-306, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 10, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record 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 < V3.00

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Siemens · SICAM P850version=All versions < V3.00
Siemens · SICAM P855version=All versions < V3.00

Published CVSS scores

6.5Siemens ProductCERTCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
6.4NVDAV:N/AC:L/Au:N/C:P/I:P/A:N

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
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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