M-Files Web before 20.10.9524.1 allows a denial of service via overlapping ranges (in…
Priority HIGH 72CWE-444Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
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
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.02931 87th percentileScored 2026-11-08
Public exploit Yes 3 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:m-files:m-files_web:*:*:*:*:*:*:*:* | before 20.10.9524.1 | Vulnerable | M-Files Corporation |
- cpe:2.3:a:m-files:m-files_web:*:*:*:*:*:*:*:* Versions before 20.10.9524.1 Vulnerable ·M-Files Corporation
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-37253
- 2026-10-03 Alias added: GHSA-gpcr-2fv6-73fj
References
Exploit 3
More M-Files Corporation M-files Web vulnerabilities
- TI-2021-18438 Missing brute-force protection in M-Files Server CVSS 3.1CRITICAL 9.8
- TI-2021-15288 In M-Files Web product with versions before 20.10.9524.1 and 20.10.9445.0, a remote… CVSS 3.1HIGH 7.5
- TI-2025-02697 Stored XSS Vulnerability in M-Files Web CVSS 4.0MEDIUM 5.1
Sources
- CVE-2021-37253 · CVE Program
- CVE-2021-37253 · NVD
- FIRST EPSS
- GHSA-gpcr-2fv6-73fj · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences