CVE-2023-3425 — Out-of-bounds read issue in M-Files Server versions below 23

Out-of-bounds read issue in M-Files Server versions below 23.8.12892.6 and LTS Service Release Versions before 23.2 LTS SR3 allows unauthenticated user to read restricted amount of bytes from memory.

01What is this vulnerability?

Out-of-bounds read issue in M-Files Server versions below 23.8.12892.6 and LTS Service Release Versions before 23.2 LTS SR3 allows unauthenticated user to read restricted amount of bytes from memory.

02Affected products

Vendor	Product	Versions
M-Files	M	Files Server — 0, 23.2.12340.14

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

Open in Sigma generator →

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-08-25T08:08:05.954Z
• Last modified: 2026-02-23T08:48:57.088Z

09References

• product.m-files.com — https://product.m-files.com/security-advisories/cve-2023-3425/
• empower.m-files.com — https://empower.m-files.com/security-advisories/CVE-2023-3425