CVE-2021-47969
HIGH
NVD
CVSS Score
7.5
Severity
HIGH
Published
May 16, 2026
Vendor
unknown
Description
Color Notes 1.4 contains a denial of service vulnerability that allows attackers to crash the application by pasting excessively long character strings into note fields. Attackers can generate a payload containing 350,000 repeated characters and paste it twice into a new note to cause the application to stop responding.