VULNERABILITY INTELLIGENCE
CVE-2021-47971
CVSS score8.7 HIGH
EPSS probability0.28%
CISA KEVNot currently listed
Published2026-05-16
Last modified2026-06-17
Description
My Notes Safe 5.3 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 350000 repeated characters and paste it twice into a new note to trigger an application crash.