CVE-2021-37253

HIGH
7.5
CVSS Score
Published: December 5, 2021 at 08:28 PM UTC
Updated: June 17, 2026 at 04:00 AM UTC
1 product affected across 1 vendorM-Files Web

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Severity
HIGH7.5
Exploit prediction
EPSS 3%
SSVC
PoC

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

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 20.10.9524.1
Affected range stops below 20.10.9524.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-444

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