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8.7
CVE-2021-47969: Color Notes 1.4 Crashes from Very Long Text Inputs
CVE-2021-47969 · published 5 months ago
Summary
Color Notes 1.4 is affected by a denial of service issue. This means that an attacker can make the application stop working by entering a very long string of characters into a note. To protect your system, consider updating to a newer version of Color Notes that fixes this issue.
Original advisory text
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 pa...
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.
Internet-facing
14 days
Internal
60 days
- Not known to be exploited
- Can be exploited automatically
- Gives an attacker partial control
Type
CWE-789Memory Allocation with Excessive Size Value
Timeline
Published16 May 2026
Updated3 Nov 2026
First seen16 May 2026
Sources
CVE-2021-47969 · NVD
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