CVE-2021-47972

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-05-16. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.5Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Sticky Notes & Color Widgets 1.4.2 contains a denial of service vulnerability that allows attackers to crash the application by creating notes with excessively long character strings. Attackers can paste large payloads of repeated characters into note fields to trigger application crashes and make the application stop responding.

CVSS v3
7.5
EG Score
7.5(medium)
EPSS
20.3%
KEV
Not listed

Published

May 16, 2026

Last Modified

May 18, 2026

Advisory Details (2)

Auto-updated May 16, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic

Sticky Notes & Color Widgets 1.4.2 Denial of Service | Advisories | VulnCheck

https://www.vulncheck.com/advisories/sticky-notes-color-widgets-denial-of-service
generic🟡 PoC Available

Sticky Notes & Color Widgets 1.4.2 - Denial of Service (PoC) - iOS dos Exploit

https://www.exploit-db.com/exploits/49957

Vendor Advisories for CVE-2021-47972(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 12× in last 7d / 80× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 192 total refreshes for this CVE.

  1. 2026-07-11 08:25 UTCEPSS rescore
  2. 2026-07-09 19:07 UTCEPSS rescore
  3. 2026-07-09 19:07 UTCEPSS rescore
  4. 2026-07-08 15:12 UTCEPSS rescore
  5. 2026-07-08 15:12 UTCEPSS rescore
  6. 2026-07-07 13:43 UTCEPSS rescore
  7. 2026-07-06 16:25 UTCEPSS rescore
  8. 2026-07-06 16:25 UTCEPSS rescore
  9. 2026-07-06 02:21 UTCEPSS rescore
  10. 2026-07-06 02:21 UTCEPSS rescore
  11. 2026-07-05 02:28 UTCEPSS rescore
  12. 2026-07-05 02:28 UTCEPSS rescore
  13. 2026-07-04 06:29 UTCEPSS rescore
  14. 2026-07-04 06:29 UTCEPSS rescore
  15. 2026-07-01 15:04 UTCEPSS rescore
  16. 2026-06-30 23:20 UTCEPSS rescore
  17. 2026-06-29 21:18 UTCEG score recompute
  18. 2026-06-29 21:18 UTCGHSA enrichment
  19. 2026-06-29 14:04 UTCEPSS rescore
  20. 2026-06-29 14:04 UTCEPSS rescore
  21. 2026-06-28 14:05 UTCEPSS rescore
  22. 2026-06-28 10:57 UTCEG score recompute
  23. 2026-06-28 10:57 UTCGHSA enrichment
  24. 2026-06-28 04:54 UTCEPSS rescore
  25. 2026-06-28 04:54 UTCEPSS rescore
Show 75 more
  1. 2026-06-27 21:38 UTCEG score recompute
  2. 2026-06-27 21:38 UTCGHSA enrichment
  3. 2026-06-27 08:35 UTCEG score recompute
  4. 2026-06-27 08:35 UTCGHSA enrichment
  5. 2026-06-27 03:07 UTCEPSS rescore
  6. 2026-06-27 03:06 UTCEPSS rescore
  7. 2026-06-26 20:03 UTCEG score recompute
  8. 2026-06-26 20:02 UTCGHSA enrichment
  9. 2026-06-25 18:37 UTCEG score recompute
  10. 2026-06-25 18:37 UTCGHSA enrichment
  11. 2026-06-25 13:48 UTCEPSS rescore
  12. 2026-06-25 13:48 UTCEPSS rescore
  13. 2026-06-24 14:03 UTCEPSS rescore
  14. 2026-06-24 14:03 UTCEPSS rescore
  15. 2026-06-23 21:31 UTCEPSS rescore
  16. 2026-06-23 21:31 UTCEPSS rescore
  17. 2026-06-22 14:24 UTCEPSS rescore
  18. 2026-06-21 14:55 UTCEPSS rescore
  19. 2026-06-21 01:58 UTCEPSS rescore
  20. 2026-06-21 01:58 UTCEPSS rescore
  21. 2026-06-19 19:24 UTCEPSS rescore
  22. 2026-06-19 19:24 UTCEPSS rescore
  23. 2026-06-18 17:51 UTCEPSS rescore
  24. 2026-06-18 17:51 UTCEPSS rescore
  25. 2026-06-18 02:48 UTCEG score recompute
  26. 2026-06-18 02:48 UTCGHSA enrichment
  27. 2026-06-17 17:51 UTCEPSS rescore
  28. 2026-06-17 17:51 UTCEPSS rescore
  29. 2026-06-17 13:19 UTCEG score recompute
  30. 2026-06-17 13:19 UTCGHSA enrichment
  31. 2026-06-17 00:30 UTCEG score recompute
  32. 2026-06-17 00:30 UTCGHSA enrichment
  33. 2026-06-16 17:51 UTCEPSS rescore
  34. 2026-06-16 11:54 UTCEG score recompute
  35. 2026-06-16 11:54 UTCGHSA enrichment
  36. 2026-06-15 23:22 UTCEG score recompute
  37. 2026-06-15 23:22 UTCGHSA enrichment
  38. 2026-06-15 17:46 UTCEPSS rescore
  39. 2026-06-15 00:10 UTCEG score recompute
  40. 2026-06-15 00:10 UTCGHSA enrichment
  41. 2026-06-14 23:15 UTCEPSS rescore
  42. 2026-06-14 23:15 UTCEPSS rescore
  43. 2026-06-14 11:39 UTCEG score recompute
  44. 2026-06-14 11:38 UTCGHSA enrichment
  45. 2026-06-13 23:07 UTCEG score recompute
  46. 2026-06-13 23:07 UTCGHSA enrichment
  47. 2026-06-13 22:58 UTCEPSS rescore
  48. 2026-06-13 22:58 UTCEPSS rescore
  49. 2026-06-13 06:23 UTCEG score recompute
  50. 2026-06-13 06:23 UTCGHSA enrichment
  51. 2026-06-12 23:10 UTCEPSS rescore
  52. 2026-06-12 17:51 UTCEG score recompute
  53. 2026-06-12 17:51 UTCGHSA enrichment
  54. 2026-06-12 05:20 UTCEG score recompute
  55. 2026-06-12 05:20 UTCGHSA enrichment
  56. 2026-06-11 16:49 UTCEG score recompute
  57. 2026-06-11 16:48 UTCGHSA enrichment
  58. 2026-06-11 13:58 UTCEPSS rescore
  59. 2026-06-11 03:33 UTCEG score recompute
  60. 2026-06-11 03:33 UTCGHSA enrichment
  61. 2026-06-10 22:16 UTCEPSS rescore
  62. 2026-06-10 15:01 UTCEG score recompute
  63. 2026-06-10 15:01 UTCGHSA enrichment
  64. 2026-06-10 13:20 UTCEPSS rescore
  65. 2026-06-10 02:30 UTCEG score recompute
  66. 2026-06-10 02:30 UTCGHSA enrichment
  67. 2026-06-09 13:58 UTCEG score recompute
  68. 2026-06-09 13:58 UTCGHSA enrichment
  69. 2026-06-09 01:27 UTCEG score recompute
  70. 2026-06-09 01:27 UTCGHSA enrichment
  71. 2026-06-08 14:15 UTCEPSS rescore
  72. 2026-06-08 14:15 UTCEPSS rescore
  73. 2026-06-08 14:15 UTCEPSS rescore
  74. 2026-06-08 12:47 UTCEG score recompute
  75. 2026-06-08 12:47 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2021-47972?
CVE-2021-47972 is a high vulnerability published on May 16, 2026. Sticky Notes & Color Widgets 1.4.2 contains a denial of service vulnerability that allows attackers to crash the application by creating notes with excessively long character strings. Attackers can paste large payloads of repeated characters into note fields to trigger application crashes and make…
When was CVE-2021-47972 disclosed?
CVE-2021-47972 was first published in the National Vulnerability Database on May 16, 2026, with the most recent update on May 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2021-47972 actively exploited?
CVE-2021-47972 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 20.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2021-47972?
CVE-2021-47972 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2021-47972?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-47972, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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