CVE-2023-40727 | BDVDB-2026-211803 Detail

SiemensQMS Automotive

Description#

A vulnerability has been identified in QMS Automotive (All versions < V12.39). The QMS.Mobile module of the affected application uses weak outdated application signing mechanism. This could allow an attacker to tamper the application code.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: local.

Weaknesses#

CWE-347 Improper Verification of Cryptographic Signature

References#

https://cert-portal.siemens.com/productcert/pdf/ssa-147266.pdf

Exploit#

No public exploit known

History#

Version 12023-09-12Record published in the CVE List.
Version 22025-02-27Most recent update recorded in the CVE List.

Published

Published: 2023-09-12
Last modified: 2025-02-27

Vendor information

Vendor: Siemens
Product: QMS Automotive

All Siemens vulnerabilities

Score

7.8 High

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 2.8.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Not classified

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
All versions < V12.39
Fixed
Not stated

Scoring System

CVSS v4.0

Not available

CVSS v3.1

7.8 High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C

Metric breakdown
Attack Vector	Local
Attack Complexity	Low
Privileges Required	Low
User Interaction	None
Scope	Unchanged
Confidentiality	High
Integrity	High
Availability	High

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).