PT-2026-41455 · Unknown · Color Notes

Geovanni Ruiz · Published 2026-05-16 · Updated 2026-05-17 · CVE-2021-47969

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Color Notes version 1.4

Description A denial of service issue allows attackers to crash the application by pasting excessively long character strings into note fields. Specifically, pasting a payload containing 350,000 repeated characters twice into a new note causes the application to stop responding.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

Weakness Enumeration

CWE-789

Related Identifiers

CVE-2021-47969

Affected Products

Color Notes

References · 5

• 🔥 https://exploit-db.com/exploits/49952 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-47969 · Security Note
• https://t.me/CVEtracker/54009 · Telegram Post
• https://twitter.com/CVEnew/status/2055866576734187755 · Twitter Post
• https://vulncheck.com/advisories/color-notes-denial-of-service-via-long-character-string · Note