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Sharealarmpro CVE-2020-37206

MEDIUM
Classic Buffer Overflow (CWE-120)
2026-02-11 disclosure@vulncheck.com
4.6
CVSS 4.0 · Vendor: vulncheck
View

Vulnerability Assessment

Weakness
CWE
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A06:2021 - Vulnerable and Outdated Components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.

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 supplying an oversized registration key.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

ShareAlarmPro contains a denial of service vulnerability that allows attackers to crash the application by supplying an oversized registration key. Attackers can generate a 1000-character buffer payload to trigger an application crash when pasted into the registration key field. [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.

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-120 (Classic Buffer Overflow). Affects Sharealarmpro. ShareAlarmPro contains a denial of service vulnerability that allows attackers to crash the application by supplying an oversized registration key. Attackers can generate a 1000-character buffer payload to trigger an application crash when pasted into the registration key field.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (vulncheck) PRIMARY 4.6 MEDIUM
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Primary rating from Vendor (vulncheck) · only source for this CVE.

CVSS VectorVendor: vulncheck

Attack Vector
Local
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
Active
Vulnerable system: Confidentiality
None
Vulnerable system: Integrity
None
Vulnerable system: Availability
Low
Subsequent system: Confidentiality
None
Subsequent system: Integrity
None
Subsequent system: Availability
None

Lifecycle Timeline

4
Severity Changed
Jun 29, 2026 - 18:37 NVD
HIGH MEDIUM
CVSS changed
Jun 29, 2026 - 18:37 NVD
7.5 (HIGH) 4.6 (MEDIUM)
PoC Detected
Feb 26, 2026 - 23:21 vuln.today
Public exploit code
CVE Published
Feb 11, 2026 - 21:16 nvd
HIGH 7.5

DescriptionCVE.org

ShareAlarmPro contains a denial of service vulnerability that allows attackers to crash the application by supplying an oversized registration key. Attackers can generate a 1000-character buffer payload to trigger an application crash when pasted into the registration key field.

Executive ViewAI

Why It Matters

ShareAlarmPro users are vulnerable to application crashes through a denial of service attack requiring minimal attacker effort. An attacker can remotely crash the application by submitting a malformed registration key, disrupting business operations and user productivity until the service is manually restarted.

Business Impact: Medium
Compensating Controls

Implement input length validation on the registration key field (max 256 characters); configure application or WAF to reject oversized payloads; disable the registration key feature if not operationally required; implement automated service restart monitoring and alerting; restrict access to the registration interface to authorized administrators only via network segmentation or authentication controls.

Threat Intelligence Overview

EPSS Score
0.0%
Top 92% exploitable
Exploit
POC
Public exploit code exists
Data Quality
4 sources
Confidence: Medium
NVD CVE.org EPSS Exploit-DB VulDB

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 MEDIUM
CISA KEV No
Public POC Yes
EPSS 0.0%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
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
No
Human Impact
Medium

Priority Score

43
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +23
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

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

Affected Products (CPE)CVE.org

cpe:2.3:a:nsasoft:sharealarmpro:-:*:*:*:*:*:*:*

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