CVE-2023-40727

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-09-12 · updated 2026-06-17
Weakness: CWE-347

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 The QMS.Mobile module of the affected application uses weak outdated application signing mechanism.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.

Affected products

Siemens QMS Automotive: before 12.39 — fixed in 12.39

How to fix

Upgrade to a fixed version: Siemens QMS Automotive 12.39. Check the vendor advisory for mitigations.

References

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

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