What is the CVSS score of CVE-2020-37075?

CVE-2020-37075 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.3%.

Is there a public PoC exploit available for CVE-2020-37075?

Yes, a public proof-of-concept exploit is available for CVE-2020-37075. Prioritise patching immediately. EPSS: 0.3%.

How to fix or mitigate CVE-2020-37075?

Within 24 hours: Identify and inventory all systems running LanSend 3.2; disable the Add Computers Wizard file import functionality if possible; restrict network access to LanSend services to trusted networks only. Within 7 days: Implement compensating controls (network segmentation, WAF rules blocking malicious imports); conduct threat hunting for signs of exploitation; evaluate alternative software solutions. Within 30 days: Either upgrade to a patched version of LanSend (if available from vendor) or complete migration to an alternative solution; document business justification if continued use is unavoidable.

CVE-2020-37075

CRITICAL

Classic Buffer Overflow (CWE-120)

2026-02-03 disclosure@vulncheck.com

Buffer Overflow

9.8

CVSS 3.1 · NVD

View

Vulnerability Assessment

Weakness	CWE CWE-120 OWASP Top 10:2025 A06:2021 - Vulnerable and Outdated Components ASVS 5.0 V15 - Secure Coding and Architecture Buffer copy size validation MITRE ATT&CK 1 technique across 1 tactic: Execution The technique list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	CVSS 9.8 with PoC. Local attack requiring user to open a crafted file.
Exploit ScenarioDerived	An attacker distributes a crafted computer list file that triggers the overflow when imported.

Act Now Prioritize within 24-48h. Why: CRITICAL severity + public POC available.

No patch listed yet 0.3% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

LanSend 3.2 has a buffer overflow in the Add Computers Wizard file import enabling code execution through crafted computer list files.

Earlier versions of this analysis (1)

v1 Mar 12, 2026 - 21:54 CVSS 9.8

Buffer overflow in LanSend file import enables local RCE.

RemediationAI

Avoid opening untrusted files in LanSend.

Affected ProductsAI

LanSend 3.2

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

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

Technical ContextAI · show details

LanSend 3.2 has a CWE-120 buffer overflow in the computer list file import functionality of the Add Computers Wizard.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 9.8 CRITICAL

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

High

Integrity

High

Availability

High

Lifecycle Timeline

PoC Detected

Feb 04, 2026 - 16:33 vuln.today

Public exploit code

CVE Published

Feb 03, 2026 - 22:16 nvd

CRITICAL 9.8

DescriptionCVE.org

LanSend 3.2 contains a buffer overflow vulnerability in the Add Computers Wizard file import functionality that allows remote attackers to execute arbitrary code. Attackers can craft a malicious payload file to trigger a structured exception handler (SEH) overwrite and execute shellcode when importing computers from a file.

Executive ViewAI

Why It Matters

LanSend 3.2 contains a critical remote code execution vulnerability (CVE-2020-37075) with a 9.8 CVSS score that allows attackers to compromise systems through the Add Computers Wizard file import feature. No vendor patch is currently available, creating immediate risk for any organization using this software. Active exploitation is possible given the public availability of proof-of-concept code.

Business Impact: Severe

Compensating Controls

Disable the Add Computers Wizard file import feature entirely if not critical to operations. Implement network segmentation to restrict which systems can access LanSend and from where. Deploy WAF/IPS rules to block suspicious file imports to LanSend services. Require multi-factor authentication for LanSend access. Enable enhanced logging and monitoring on LanSend processes for anomalous behavior. Consider running LanSend in an isolated environment or sandboxed network segment. If feasible, migrate to an alternative asset management solution with active vendor support.

Threat Intelligence Overview

EPSS Score

0.3%

Top 52% exploitable

Exploit

POC

Public exploit code exists

Data Quality

4 sources

Confidence: Medium

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 CRITICAL

CISA KEV No

Public POC Yes

EPSS 0.3%

Patch available No

Active threat No

Deciding rule

CRITICAL severity + public POC available

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

Out-of-Cycle

Exploitation· derived

Poc

System Exposure· derived

Open

Automatable· derived

Yes

Human Impact

Very High

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +49

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.