How severe is CVE-2021-37254?

CVE-2021-37254 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-37254 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-37254?

CVE-2021-37254 affects M-files M-files Web. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-37254?

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-2021-37254 published?

CVE-2021-37254 was published on 2021-10-28 and last updated on 2026-06-17.

CVE-2021-37254

CVE-2021-37254 is a high-severity vulnerability in M-files M-files Web with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (67th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: M-files M-files Web
Published: 2021-10-28
Last modified: 2026-06-17

Description

In M-Files Web product with versions before 20.10.9524.1 and 20.10.9445.0, a remote attacker could use a flaw to obtain unauthenticated access to 3rd party component license key information on server.

Frequently asked questions

What is CVE-2021-37254?: In M-Files Web product with versions before 20.10.9524.1 and 20.10.9445.0, a remote attacker could use a flaw to obtain unauthenticated access to 3rd party component license key information on server.
How severe is CVE-2021-37254?: CVE-2021-37254 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-37254 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-37254?: CVE-2021-37254 affects M-files M-files Web. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-37254?: 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-2021-37254 published?: CVE-2021-37254 was published on 2021-10-28 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:m-files:m-files_web:*:*:*:*:*:*:*:*

More vulnerabilities in M-files M-files Web

CVE-2021-41807 — High (CVSS 7.5): Lack of rate limiting in M-Files Server and M-Files Web products with versions before 21.12.10873.0 in certain type of…
CVE-2021-37253 — High (CVSS 7.5): M-Files Web before 20.10.9524.1 allows a denial of service via overlapping ranges (in HTTP requests with crafted Range…
CVE-2025-3087 — Medium (CVSS 5.4): Stored XSS in M-Files Web versions from 25.1.14445.5 to 25.2.14524.4 allows an authenticated user to run scripts

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