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Full vulnerability report · 2023
CVE-2023-40729High confidence

A vulnerability has been identified in QMS Automotive (All versions < V12.39)

Siemens · QMS Automotive

7.3HighCVSS 3.1
Recommended action
Within 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

1 current
SSA-147266 · CSAF 2.0 · revision 1 · finalSiemens ProductCERTSSA-147266: Multiple Vulnerabilities in QMS Automotive before V12.39
1 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • QMS Automotive
Summary
The affected application lacks security control to prevent unencrypted communication without HTTPS. An attacker who managed to gain machine-in-the-middle position could manipulate, or steal confidential information.
Remediation
Update to V12.39 or later version. The patch is available upon request from customer support
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2023-45283

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionWithin 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
01

What, why and how

A vulnerability has been identified in QMS Automotive (All versions < V12.39). The affected application lacks security control to prevent unencrypted communication without HTTPS. An attacker who managed to gain machine-in-the-middle position could manipulate, or steal confidential information.

What

A vulnerability has been identified in QMS Automotive (All versions < V12.39). The affected application lacks security control to prevent unencrypted communication without HTTPS. An attacker who managed to gain machine-in-the-middle position could manipulate, or steal confidential information.

Why

The product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors.

How

An attacker operating through an adjacent network may attempt exploitation without authentication after a user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

A vulnerability has been identified in QMS Automotive (All versions < V12.39). The affected application lacks security control to prevent unencrypted communication without HTTPS. An attacker who managed to gain machine-in-the-middle position could manipulate, or steal confidential information.

Why

The product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors.

How

An attacker operating through an adjacent network may attempt exploitation without authentication after a user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
an adjacent network → Cleartext Transmission of Sensitive Information → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Adjacent
Privileges required
None: unauthenticated exploitation is possible
User interaction
Required interaction required
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-319 ↗

CWE-319: Cleartext Transmission of Sensitive Information. The product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N/E:P/RL:O/RC:C

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVAdjacentAttack vector: The attacker must be on an adjacent or logically close network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing privileges.UIRequiredUser interaction: Another user must perform an action for exploitation to succeed.SUnchangedScope: The security impact remains within the vulnerable component's authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.ANoneAvailability impact: No direct loss is represented by this metric.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
UnauthenticatedCWE-319
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

Cyber Security Agency of Singapore · English · CSA-SB-20230913Security Bulletin 13 Sep 2023

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 13 Sep 2023, published on 13 September 2023. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CERT-FR · French · CERTFR-2023-AVI-0733Multiples vulnérabilités dans les produits Siemens

ord?id=CVE-2023-38074 Référence CVE CVE-2023-38075 https://www.cve.org/CVERecord?id=CVE-2023-38075 Référence CVE CVE-2023-38076 https://www.cve.org/CVERecord?id=CVE-2023-38076 Référence CVE CVE-2023-3935 https://www.cve.org/CVERecord?id=CVE-2023-3935 Référence CVE CVE-2023-40724 https://www.cve.org/CVERecord?id=CVE-2023-40724 Référence CVE CVE-2023-40725 https://www.cve.org/CVERecord?id=CVE-2023-40725 Référence CVE CVE-2023-40726 https://www.cve.org/CVERecord?id=CVE-2023-40726 Référence CVE CVE-2023-40727 https://www.cve.org/CVERecord?id=CVE-2023-40727 Référence CVE CVE-2023-40728 https://www.cve.org/CVERecord?id=CVE-2023-40728 Référence CVE CVE-2023-40729 https://www.cve.org/CVERecord?id=CVE-2023-40729 Référence CVE CVE-2023-40730 https://www.cve.org/CVERecord?id=CVE-2023-40730 Référence CVE CVE-2023-40731 https://www.cve.org/CVERecord?id=CVE-2023-40731 Référence CVE CVE-2023-40732 https://www.cve.org/CVERecord?id=CVE-2023-40732 Référence CVE CVE-2023-41032 https://www.cve.org/CVERecord?id=CVE-2023-41032 Référence CVE CVE-2023-41033 https://www.cve.org/CVERecord?id=CVE-2023-41033 Gestion détaillée du document le 12 septembre 2023 Version initiale Alertes Avis Bulletins d’actualités Mentions légales Conditions générales À propos Contact cyber.gouv.fr service-public.fr legifrance.gouv.fr info.g

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2023-012099シーメンスの QMS Automotive における重要な情報の平文での送信に関する脆弱性

シーメンスの QMS Automotive には、重要な情報の平文での送信に関する脆弱性が存在します。

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Patch available
Affected
QMS Automotive
Fixed
No fixed version is explicitly recorded in the structured CVE data.
Action
Update to V12.39 or later version. The patch is available upon request from customer support
Workaround
No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.
04

Evidence and provenance

Published 12 Sept 2023 · Last source change 27 Feb 2025, 20:55 UTC · CWE-319 · Cleartext Transmission of Sensitive Information

CVE recordCVE.org · 5.1
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2023-45283
Product sourceVendor CSAF · Siemens ProductCERT
Remediation sourceVendor CSAF · Siemens ProductCERT
CWE sourceCNA
NVD statusNVD modified after enrichment

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates ↗

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
ENISA EUVD · EUVD-2023-45283↗Vendor CSAF · Siemens ProductCERT↗CVE authority or vendor reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2023-40729 · cve.blacktree.nl