How severe is CVE-2023-3406?

CVE-2023-3406 has a CVSS 3.x base score of 7.7, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2023-3406 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-3406?

CVE-2023-3406 primarily affects M-files Classic Web. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-3406?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-3406 published?

CVE-2023-3406 was published on 2023-08-25 and last updated on 2026-06-17.

CVE-2023-3406

CVE-2023-3406 is a high-severity vulnerability in M-files Classic Web with a CVSS 3.x base score of 7.7. 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-22.

Key facts

Severity: High (CVSS 3.x base score 7.7)
EPSS exploit prediction: 1% (44th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: M-files Classic Web
Published: 2023-08-25
Last modified: 2026-06-17

Description

Path Traversal issue in M-Files Classic Web versions below 23.6.12695.3 and LTS Service Release Versions before 23.2 LTS SR3 allows authenticated user to read some restricted files on the web server

Frequently asked questions

What is CVE-2023-3406?: Path Traversal issue in M-Files Classic Web versions below 23.6.12695.3 and LTS Service Release Versions before 23.2 LTS SR3 allows authenticated user to read some restricted files on the web server
How severe is CVE-2023-3406?: CVE-2023-3406 has a CVSS 3.x base score of 7.7, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2023-3406 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-3406?: CVE-2023-3406 primarily affects M-files Classic Web. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-3406?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-3406 published?: CVE-2023-3406 was published on 2023-08-25 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:m-files:classic_web:*:*:*:*:lts:*:*:*
cpe:2.3:a:m-files:classic_web:*:*:*:*:-:*:*:*
cpe:2.3:a:m-files:classic_web:23.2:-:*:*:lts:*:*:*

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