What is the CVSS score of CVE-2020-37122?

CVE-2020-37122 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: 0.0%.

Is there a public PoC exploit available for CVE-2020-37122?

Yes, a public proof-of-concept exploit is available for CVE-2020-37122. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2020-37122?

Within 24 hours: Identify all systems running SpotFTP 2.4.8 and assess criticality to business operations. Within 7 days: Implement input validation controls, disable the affected application if non-critical, or restrict access to trusted users only. Within 30 days: Contact vendor for patch status, evaluate alternative FTP password recovery solutions, or plan migration away from this product if no patch is released.

CVE-2020-37122

HIGH

Stack-based Buffer Overflow (CWE-121)

2026-02-07 disclosure@vulncheck.com

Buffer Overflow Denial Of Service

7.5

CVSS 3.1 · NVD

View

Vulnerability Assessment

Weakness	CWE CWE-121 OWASP Top 10:2025 A06:2021 - Vulnerable and Outdated Components ASVS 5.0 V15 - Secure Coding and Architecture Stack buffer bounds checking MITRE ATT&CK 1 technique across 1 tactic: Execution The technique list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 7.5 (HIGH). Attack vector: Network. Complexity: Low. Privileges required: None. User interaction: None. Public exploit/POC available.
Exploit ScenarioDerived	An attacker could exploit this vulnerability to crash the application by generating a large buffer overflow.

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 12, 2026

SpotFTP-FTP Password Recover 2.4.8 contains a denial of service vulnerability that allows attackers to crash the application by generating a large buffer overflow. Attackers can create a text file with 1000 'Z' characters and input it as a registration code to trigger the application crash. [CVSS 7.5 HIGH]

RemediationAI

Monitor vendor advisories for a patch. Enable ASLR, DEP/NX, and stack canaries where possible. Restrict network access to the affected service where possible.

Affected ProductsAI

SpotFTP-FTP Password Recover 2.4.8 contains a denial of service vulnerability that allows attackers to crash the application by generating a large buf

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

Classified as CWE-121 (Stack-based Buffer Overflow). SpotFTP-FTP Password Recover 2.4.8 contains a denial of service vulnerability that allows attackers to crash the application by generating a large buffer overflow. Attackers can create a text file with 1000 'Z' characters and input it as a registration code to trigger the application crash.

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Exploit and PoC references, threat intelligence from 22 sources

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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

Feb 09, 2026 - 16:08 vuln.today

Public exploit code

CVE Published

Feb 07, 2026 - 00:15 nvd

HIGH 7.5

DescriptionCVE.org

Executive ViewAI

Why It Matters

SpotFTP-FTP Password Recover 2.4.8 is vulnerable to a denial of service attack that can crash the application with minimal user interaction, potentially disrupting FTP password recovery operations. Organizations using this software should immediately assess their dependency on this tool and implement interim protections, as no vendor patch is currently available.

Business Impact: Medium

Compensating Controls

Restrict application access to authenticated internal users only via network segmentation; implement strict input validation on registration code fields to reject buffers exceeding reasonable length (e.g., 256 characters); disable SpotFTP 2.4.8 if alternative FTP password recovery methods are available; monitor application logs for repeated crashes or failed registration attempts indicating exploitation attempts.

Threat Intelligence Overview

EPSS Score

0.0%

Top 98% 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 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

Open

Automatable· derived

Yes

Human Impact

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +38

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.

Denial of Service MEDIUM

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.