How severe is CVE-2023-40731?

CVE-2023-40731 has a CVSS 3.x base score of 5.7, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2023-40731 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-40731?

CVE-2023-40731 affects Siemens Qms Automotive. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-40731?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-40731 published?

CVE-2023-40731 was published on 2023-09-12 and last updated on 2026-06-17.

CVE-2023-40731

CVE-2023-40731 is a medium-severity vulnerability in Siemens Qms Automotive with a CVSS 3.x base score of 5.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-434.

Key facts

Severity: Medium (CVSS 3.x base score 5.7)
EPSS exploit prediction: 0% (37th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-434
Affected product: Siemens Qms Automotive
Published: 2023-09-12
Last modified: 2026-06-17

Description

A vulnerability has been identified in QMS Automotive (All versions < V12.39). The affected application allows users to upload arbitrary file types. This could allow an attacker to upload malicious files, that could potentially lead to code tampering.

Frequently asked questions

What is CVE-2023-40731?: A vulnerability has been identified in QMS Automotive (All versions < V12.39). The affected application allows users to upload arbitrary file types. This could allow an attacker to upload malicious files, that could potentially lead to code tampering.
How severe is CVE-2023-40731?: CVE-2023-40731 has a CVSS 3.x base score of 5.7, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2023-40731 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-40731?: CVE-2023-40731 affects Siemens Qms Automotive. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-40731?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-40731 published?: CVE-2023-40731 was published on 2023-09-12 and last updated on 2026-06-17.

References

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

Affected products (1)

cpe:2.3:a:siemens:qms_automotive:*:*:*:*:*:*:*:*

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