CVE-2024-35206

Unauthorized access via non-expiring sessions

Published Jun 11, 2024 · Updated Feb 11, 2025

Insufficient session expiration in Siemens SINEC Traffic Analyzer before 1.2 allows local users to obtain unauthorized access via a retained session. The application fails to apply an expiration boundary to an authenticated session, so retained authorization state remains reusable. Local access to a retained authenticated session is required, and reuse permits viewing or changing data available to that session without service interruption.

CVSS severity8.5
High
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Insufficient session expiration in Siemens SINEC Traffic Analyzer before 1.2 allows local users to obtain unauthorized access via a retained session. The application fails to apply an expiration boundary to an authenticated session, so retained authorization state remains reusable. Local access to a retained authenticated session is required, and reuse permits viewing or changing data available to that session without service interruption.

The record

CVE
CVE-2024-35206
Published
Jun 11, 2024
Updated
Feb 11, 2025
Vendor
Siemens
Product
SINEC Traffic Analyzer
Classifications
CWE-613
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 11, 2024CVE publishedPublication date reported by the CVE source.
  2. Feb 11, 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 <1.2
  2. Affected versionversion=0 <V1.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Siemens · SINEC Traffic Analyzerversion=0 <1.2; version=0 <V1.2

Published CVSS scores

7.7Siemens AGCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
8.5Siemens AGCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA: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.

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No observations available

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

Weakness, pattern, technique

CWE-613Insufficient Session Expiration

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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