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CVE-2021-37253

7.5 · HIGH

M-Files Web before 20.10.9524.1 allows a denial of service via overlapping ranges (in HTTP requests with crafted Range or Request-Range headers).

Published Dec 5, 2021CWE-444EPSS 2.93%

Overview

CVE-2021-37253 is a high-severity vulnerability. It was published on December 5, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

M-Files Web before 20.10.9524.1 allows a denial of service via overlapping ranges (in HTTP requests with crafted Range or Request-Range headers). NOTE: this is disputed because the range behavior is the responsibility of the web server, not the responsibility of the individual web application

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refpacketstormsecurity.com/files/165139/M-Files-Web-Denial-Of-Service.htmlRefseclists.org/fulldisclosure/2021/Dec/1Refvulmon.com/vulnerabilitydetails?qid=CVE-2021-37253Refwww.m-files.com/about/trust-center/security-advisories/cve-2021-37253-denial-of-service/Refwww.m-files.com/company/trust-center/vulnerability-disclosure/Refwww.tenable.com/cve/CVE-2021-37253Refpacketstormsecurity.com/files/165139/M-Files-Web-Denial-Of-Service.htmlRefseclists.org/fulldisclosure/2021/Dec/1Refvulmon.com/vulnerabilitydetails?qid=CVE-2021-37253Refwww.m-files.com/about/trust-center/security-advisories/cve-2021-37253-denial-of-service/

How CyberStrike helps

Frequently asked questions

What is CVE-2021-37253?

CVE-2021-37253 is a high-severity vulnerability. It was published on December 5, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2021-37253?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2021-37253?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2021-37253?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-37253 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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