CWE-427
906 CVEs across 63 months on the top 50 list since Feb 2005. Peak rank #15 in Oct 2020.
CWE-427 CVEs per month since Feb 2005
May 2021: 12 CVEs · rank #37Jun 2021: 15 CVEs · rank #28Jul 2021: 14 CVEs · rank #23Aug 2021: 12 CVEs · rank #39Sep 2021: 9 CVEs · rank #42Oct 2021: 7 CVEs · rank #45Nov 2021: 7 CVEs · rank #45Dec 2021: not on the top 50 that monthJan 2022: not on the top 50 that monthFeb 2022: 12 CVEs · rank #36Mar 2022: 13 CVEs · rank #35Apr 2022: 11 CVEs · rank #38May 2022: 17 CVEs · rank #26Jun 2022: 12 CVEs · rank #34Jul 2022: 12 CVEs · rank #30Aug 2022: 9 CVEs · rank #48Sep 2022: not on the top 50 that monthOct 2022: not on the top 50 that monthNov 2022: 21 CVEs · rank #26Dec 2022: not on the top 50 that monthJan 2023: not on the top 50 that monthFeb 2023: 23 CVEs · rank #25Mar 2023: not on the top 50 that monthApr 2023: 10 CVEs · rank #44May 2023: 19 CVEs · rank #26Jun 2023: not on the top 50 that monthJul 2023: not on the top 50 that monthAug 2023: 22 CVEs · rank #23Sep 2023: not on the top 50 that monthOct 2023: not on the top 50 that monthNov 2023: 26 CVEs · rank #21Dec 2023: 9 CVEs · rank #47Jan 2024: 10 CVEs · rank #46Feb 2024: 17 CVEs · rank #35Mar 2024: 9 CVEs · rank #44Apr 2024: not on the top 50 that monthMay 2024: 29 CVEs · rank #29Jun 2024: not on the top 50 that monthJul 2024: 11 CVEs · rank #47Aug 2024: 25 CVEs · rank #25Sep 2024: 12 CVEs · rank #42Oct 2024: 22 CVEs · rank #33Nov 2024: 30 CVEs · rank #29Dec 2024: not on the top 50 that monthJan 2025: 17 CVEs · rank #43Feb 2025: 26 CVEs · rank #33Mar 2025: not on the top 50 that monthApr 2025: 16 CVEs · rank #42May 2025: 28 CVEs · rank #31Jun 2025: 12 CVEs · rank #48Jul 2025: not on the top 50 that monthAug 2025: 15 CVEs · rank #49Sep 2025: not on the top 50 that monthOct 2025: 21 CVEs · rank #40Nov 2025: 23 CVEs · rank #34Dec 2025: 36 CVEs · rank #29Jan 2026: 20 CVEs · rank #40Feb 2026: 25 CVEs · rank #38Mar 2026: not on the top 50 that monthApr 2026: 28 CVEs · rank #47
Year by year
Each year's months on the top 50 list of weakness classes. Pick a year to read it in the lens.
The record
- Peak rank
- #15 in Oct 2020
- Busiest month
- Dec 2025, 36 CVEs
- First on the list
- Feb 2005
- On the top 50 list
- 63 of 255 monthly snapshots