What is the CVSS score of CVE-2020-36880?

CVE-2020-36880 has a CVSS 3.1 base score of 7.8 (High). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.0%.

Is there a public PoC exploit available for CVE-2020-36880?

Yes, a public proof-of-concept exploit is available for CVE-2020-36880. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2020-36880?

Within 24 hours: Inventory all systems running DiskBoss 7.7.14 and isolate affected machines from production networks if possible. Within 7 days: Restrict local access to affected systems through privilege access management (PAM) controls and disable the 'Reports and Data Directory' feature if feasible. Within 30 days: Upgrade to DiskBoss 8.x or later, or decommission the application and migrate to a supported alternative.

Diskboss CVE-2020-36880

EUVD-2020-30824 HIGH

Buffer Overflow (CWE-119)

2025-12-05 disclosure@vulncheck.com

RCE Buffer Overflow Diskboss Flexense

7.8

CVSS 3.1 · NVD

View

Vulnerability Assessment

Weakness	CWE CWE-119 OWASP Top 10:2025 A06:2021 - Vulnerable and Outdated Components ASVS 5.0 V15 - Secure Coding and Architecture Bounds checking, buffer size validation MITRE ATT&CK 2 techniques across 2 tactics: Execution, Privilege Escalation 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	Successful exploitation can lead to arbitrary code execution, denial of service, or privilege escalation depending on the memory layout and protections in place. With a CVSS score of 7.8 (HIGH), this represents a significant risk.
Exploit ScenarioDerived	An attacker sends an oversized input to a vulnerable function, overwriting the return address on the stack to redirect execution to attacker-controlled shellcode.

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

No patch listed yet 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 15, 2026

Flexsense DiskBoss 7.7.14 contains a local buffer overflow vulnerability in the 'Reports and Data Directory' field that allows an attacker to execute arbitrary code on the system.

Earlier versions of this analysis (1)

v1 Mar 15, 2026 - 17:08 CVSS 7.8

RemediationAI

Use memory-safe languages or bounds-checked functions. Enable ASLR, DEP/NX, and stack canaries. Apply vendor patches promptly.

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

A buffer overflow occurs when data written to a buffer exceeds its allocated size, potentially overwriting adjacent memory and corrupting program state.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 7.8 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

PoC Detected

Dec 10, 2025 - 15:10 vuln.today

Public exploit code

CVE Published

Dec 05, 2025 - 18:15 nvd

HIGH 7.8

Executive ViewAI

Why It Matters

DiskBoss 7.7.14 contains a critical local buffer overflow vulnerability (CVE-2020-36880) that enables attackers with system access to execute arbitrary code with elevated privileges. Organizations running this legacy software face immediate risk of complete system compromise, data theft, and lateral movement across the network. Immediate action is required to identify affected systems and implement containment measures.

Business Impact: High

Compensating Controls

Disable the 'Reports and Data Directory' feature in DiskBoss configuration; implement strict local access controls and user privilege restrictions; segment affected systems from the network; deploy application whitelisting to prevent arbitrary code execution; enable enhanced logging and monitoring for DiskBoss process behavior; consider endpoint detection and response (EDR) solutions for real-time threat detection.

Threat Intelligence Overview

EPSS Score

0.0%

Top 97% exploitable

Exploit

POC

Public exploit code exists

Data Quality

5 sources

Confidence: Medium

EUVD

NVD

CVE.org

EPSS

Exploit-DB

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 0.0%

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.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation· derived

Poc

System Exposure· derived

Small

Automatable· derived

Human Impact

High

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +39

PoC: +20

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Buffer Overflow HIGH

A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.

Remote Code Execution CRITICAL

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.