What is the CVSS score of CVE-2020-36882?

CVE-2020-36882 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 0.2%.

Is there a public PoC exploit available for CVE-2020-36882?

Yes, a public proof-of-concept exploit is available for CVE-2020-36882. Prioritise patching immediately. EPSS: 0.2%.

How to fix or mitigate CVE-2020-36882?

Within 24 hours: identify all DiskBoss 7.7.14 instances in your environment and assess their exposure to untrusted networks. Within 7 days: implement network-level access controls to restrict DiskBoss connectivity or apply WAF rules blocking requests to the /Command/Search Files endpoint. Within 30 days: evaluate upgrade to a patched version, migrate to alternative file management software, or decommission the application if not business-critical.

Diskboss CVE-2020-36882

EUVD-2020-30829 HIGH

Unrestricted Upload of File with Dangerous Type (CWE-434)

2025-12-05 disclosure@vulncheck.com

Denial Of Service File Upload Diskboss Flexense

7.5

CVSS 3.1 · NVD

View

Vulnerability Assessment

Weakness	CWE CWE-434 OWASP Top 10:2025 A06:2025 - Insecure Design ASVS 5.0 V5 - File Handling File type validation, storage isolation MITRE ATT&CK 2 techniques across 2 tactics: Command and Control, Persistence The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	Remote code execution through uploaded web shells or malware, leading to complete server compromise. With a CVSS score of 7.5 (HIGH), this represents a significant risk.
Exploit ScenarioDerived	An attacker uploads a PHP/JSP web shell disguised with a legitimate extension, then accesses it via the web server to execute arbitrary commands.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).

No patch listed yet 0.2% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAIv1 – Mar 15, 2026

Flexsense DiskBoss 7.7.14 allows unauthenticated attackers to upload arbitrary files via /Command/Search Files/Directory field, leading to a denial of service by crashing the application.

Earlier versions of this analysis (1)

v1 Mar 15, 2026 - 17:08 CVSS 7.5

RemediationAI

Validate file types by content (magic bytes), not just extension. Store uploads outside the web root. Use random filenames. Scan uploads for malware.

Affected VersionsENISA

DiskBoss 7.7.14

Affected Packages

euvd diskboss no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

Unrestricted file upload allows attackers to upload malicious files (web shells, executables) that can then be executed on the server. This vulnerability is classified as Unrestricted Upload of File with Dangerous Type (CWE-434).

Know when Diskboss gets its next vulnerability

Watch products and get an email when something new is published
Check this CVE against your own stack and servers
Exploit and PoC references, threat intelligence from 22 sources

Continue with Google Continue with GitHub

No credit card · 7-day full trial

Severity by source

NVD PRIMARY 7.5 HIGH

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

PoC Detected

Dec 10, 2025 - 15:08 vuln.today

Public exploit code

CVE Published

Dec 05, 2025 - 18:15 nvd

HIGH 7.5

Executive ViewAI

Why It Matters

DiskBoss 7.7.14 contains a critical vulnerability allowing unauthenticated remote attackers to crash the application through malicious file uploads, potentially disrupting business operations and data access. Organizations running this software face immediate service availability risk with no vendor patch currently available.

Business Impact: High

Compensating Controls

Restrict network access to DiskBoss instances via firewall rules or VPN-only access; deploy Web Application Firewall (WAF) rules to block POST requests to /Command/Search Files endpoint; disable or restrict file upload functionality if not operationally required; implement application monitoring to detect and alert on repeated upload attempts; segment DiskBoss instances from critical infrastructure using network isolation.

Threat Intelligence Overview

EPSS Score

0.2%

Top 55% exploitable

Exploit

POC

Public exploit code exists

Data Quality

6 sources

Confidence: High

EUVD

NVD

CVE.org

EPSS

Exploit-DB

GitHub

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity HIGH

CISA KEV No

Public POC Yes

EPSS 0.2%

Patch available No

Active threat No

Deciding rule

HIGH severity (CVSS 7.0-8.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.