CVE-2024-33494Network attack vector

Secondary-system disruption via unauthenticated heartbeat messages

Published May 14, 2024 · Updated Aug 2, 2024

Authentication failure in Siemens SIMATIC RTLS Locating Manager before 3.0.1.1 allows remote attackers to disrupt secondary RTLS systems. The TeeRevProxy service accepts heartbeat messages without properly authenticating their source, allowing forged heartbeats to affect peer availability. Exploitation requires secondary RTLS systems configured through TeeRevProxy and can cause loss of data generated while the attack continues.

CVSS severity6.5
Medium
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication failure in Siemens SIMATIC RTLS Locating Manager before 3.0.1.1 allows remote attackers to disrupt secondary RTLS systems. The TeeRevProxy service accepts heartbeat messages without properly authenticating their source, allowing forged heartbeats to affect peer availability. Exploitation requires secondary RTLS systems configured through TeeRevProxy and can cause loss of data generated while the attack continues.

The record

CVE
CVE-2024-33494
Published
May 14, 2024
Updated
Aug 2, 2024
Vendor
Siemens
Product
SIMATIC RTLS Locating Manager
Classifications
CWE-345, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 14, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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=0 <3.0.1.1
  2. Affected versionversion=0 <V3.0.1.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Siemens · SIMATIC RTLS Locating Managerversion=0 <3.0.1.1; version=0 <V3.0.1.1

Published CVSS scores

6.5Siemens AGCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
6.9Siemens AGCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/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.

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-345Insufficient Verification of Data Authenticity
T1499.004Application or System Exploitation

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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