CVE-2022-40226Network attack vector

Session takeover via fixed session cookies

Published Oct 11, 2022 · Updated Dec 9, 2025

Session fixation in Siemens SICAM P850, SICAM P855, and SICAM T before V3.10 or V3.0 allows remote attackers to take over another user's session via the web interface. The devices accept attacker-chosen session cookies and fail to renew them after login or logout, allowing a pre-positioned cookie to remain valid. Exploitation requires network access and user interaction to induce login with the chosen cookie; successful takeover can expose and alter functions available to the victim account.

CVSS severityUnavailable
Unscored
EPSS probability0.69%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Session fixation in Siemens SICAM P850, SICAM P855, and SICAM T before V3.10 or V3.0 allows remote attackers to take over another user's session via the web interface. The devices accept attacker-chosen session cookies and fail to renew them after login or logout, allowing a pre-positioned cookie to remain valid. Exploitation requires network access and user interaction to induce login with the chosen cookie; successful takeover can expose and alter functions available to the victim account.

The record

CVE
CVE-2022-40226
Published
Oct 11, 2022
Updated
Dec 9, 2025
Vendor
Siemens
Product
SICAM T
Classifications
CWE-384, T1539
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 11, 2022CVE publishedPublication date reported by the CVE source.
  2. Dec 9, 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=0 <V3.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Siemens · SICAM Tversion=0 <V3.0
Siemens · SICAM P850version=All versions < V3.10
Siemens · SICAM P855version=All versions < V3.10

Published CVSS scores

7.5Siemens ProductCERTCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C

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-384Session Fixation
T1539Steal Web Session Cookie

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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