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CVE-2021-47970 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

Description

Macaron Notes 5.5 contains a denial of service vulnerability that allows attackers to crash the application by creating notes with excessively long character strings. Attackers can generate a payload containing 350000 repeated characters and paste it into a note field to trigger application crash and stop functionality.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:5.5 MEDIUMVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CNA: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://www.exploit-db.com/exploits/49953	[email protected]	Exploit
https://www.vulncheck.com/advisories/macaron-notes-denial-of-service-via-buffer-overflow	[email protected]	AdvisoryExploit

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-789	Memory Allocation with Excessive Size Value	[email protected]

Affected Products

Product	Versions
Macaron Notes	All versions
CPE No CPEs found in CPE dictionary for this product. Remediation No remediation found in references.

Change History

3 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
May 16, 2026	New CVE Received	[email protected]