CVE-2022-40225Network attack vector

Service interruption via incorrect numeric conversion

Published Jun 11, 2024 · Updated Aug 3, 2024

Numeric conversion errors in Siemens TIM 1531 IRC products before 2.4.8 allow remote authenticated users to interrupt device service. An undisclosed internal value is cast incorrectly, raising a floating-point exception; Siemens has not identified the affected function or input. Low-privileged network access is required, and triggering affects availability without reported data disclosure or modification.

CVSS severity6.9
Medium
EPSS probability0.62%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Numeric conversion errors in Siemens TIM 1531 IRC products before 2.4.8 allow remote authenticated users to interrupt device service. An undisclosed internal value is cast incorrectly, raising a floating-point exception; Siemens has not identified the affected function or input. Low-privileged network access is required, and triggering affects availability without reported data disclosure or modification.

The record

CVE
CVE-2022-40225
Published
Jun 11, 2024
Updated
Aug 3, 2024
Vendor
Siemens
Product
TIM 1531 IRC
Classifications
CWE-681, T0814
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 11, 2024CVE 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=0 <V2.4.8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Siemens · TIM 1531 IRCversion=0 <V2.4.8
Siemens · SIPLUS TIM 1531 IRCversion=0 <V2.4.8

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
6.5Siemens AGCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
6.9Siemens AGCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:H/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-681Incorrect Conversion between Numeric Types
T0814Denial of Service

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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