CVE-2024-41986

Data interception and alteration via legacy TLS support

Published Aug 12, 2025 · Updated Aug 12, 2025

Weak TLS in Siemens Opcenter Quality modules 13.2 through 2505 allows man-in-the-middle attackers to read and alter application data. The affected modules negotiate deprecated TLS 1.0 and 1.1 instead of requiring TLS 1.2, permitting an on-path party to weaken transport protection. The attacker must control an adjacent network position; successful interception exposes transmitted data to reading and modification.

CVSS severity6.1
Medium
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Weak TLS in Siemens Opcenter Quality modules 13.2 through 2505 allows man-in-the-middle attackers to read and alter application data. The affected modules negotiate deprecated TLS 1.0 and 1.1 instead of requiring TLS 1.2, permitting an on-path party to weaken transport protection. The attacker must control an adjacent network position; successful interception exposes transmitted data to reading and modification.

The record

CVE
CVE-2024-41986
Published
Aug 12, 2025
Updated
Aug 12, 2025
Vendor
Siemens
Product
SmartClient modules Opcenter QL Home (SC)
Classifications
CWE-327, T1557
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 12, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 12, 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=V13.2 <V2506

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Siemens · SmartClient modules Opcenter QL Home (SC)version=V13.2 <V2506
Siemens · SOA Cockpitversion=V13.2 <V2506
Siemens · SOA Auditversion=V13.2 <V2506

Published CVSS scores

6.4Siemens ProductCERTCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L
6.1Siemens ProductCERTCVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:H/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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-327Use of a Broken or Risky Cryptographic Algorithm
T1557Adversary-in-the-Middle

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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