Improper Certificate Validation
1,280 CVEs across 108 months on the top 50 list since Sep 2002. Peak rank #1 in Sep 2002.
CWE-295 CVEs per month since Sep 2002
Nov 2021: 11 CVEs · rank #28Dec 2021: 8 CVEs · rank #46Jan 2022: below the top 50 that month, 7 or fewer CVEsFeb 2022: 20 CVEs · rank #24Mar 2022: 11 CVEs · rank #40Apr 2022: below the top 50 that month, 8 or fewer CVEsMay 2022: 12 CVEs · rank #34Jun 2022: 10 CVEs · rank #44Jul 2022: 11 CVEs · rank #33Aug 2022: below the top 50 that month, 9 or fewer CVEsSep 2022: 13 CVEs · rank #34Oct 2022: below the top 50 that month, 8 or fewer CVEsNov 2022: 8 CVEs · rank #50Dec 2022: 8 CVEs · rank #50Jan 2023: below the top 50 that month, 7 or fewer CVEsFeb 2023: 15 CVEs · rank #39Mar 2023: no snapshot, the run for this month failedApr 2023: 14 CVEs · rank #35May 2023: 16 CVEs · rank #31Jun 2023: 9 CVEs · rank #47Jul 2023: below the top 50 that month, 8 or fewer CVEsAug 2023: below the top 50 that month, 9 or fewer CVEsSep 2023: 12 CVEs · rank #32Oct 2023: 13 CVEs · rank #39Nov 2023: below the top 50 that month, 8 or fewer CVEsDec 2023: 9 CVEs · rank #43Jan 2024: below the top 50 that month, 9 or fewer CVEsFeb 2024: 12 CVEs · rank #42Mar 2024: 9 CVEs · rank #41Apr 2024: below the top 50 that month, 9 or fewer CVEsMay 2024: below the top 50 that month, 13 or fewer CVEsJun 2024: below the top 50 that month, 10 or fewer CVEsJul 2024: 13 CVEs · rank #41Aug 2024: 16 CVEs · rank #38Sep 2024: 13 CVEs · rank #38Oct 2024: 15 CVEs · rank #45Nov 2024: below the top 50 that month, 13 or fewer CVEsDec 2024: 12 CVEs · rank #48Jan 2025: 16 CVEs · rank #46Feb 2025: below the top 50 that month, 13 or fewer CVEsMar 2025: below the top 50 that month, 13 or fewer CVEsApr 2025: below the top 50 that month, 12 or fewer CVEsMay 2025: 15 CVEs · rank #47Jun 2025: 14 CVEs · rank #42Jul 2025: below the top 50 that month, 14 or fewer CVEsAug 2025: 20 CVEs · rank #40Sep 2025: below the top 50 that month, 16 or fewer CVEsOct 2025: below the top 50 that month, 14 or fewer CVEsNov 2025: 13 CVEs · rank #44Dec 2025: below the top 50 that month, 14 or fewer CVEsJan 2026: below the top 50 that month, 15 or fewer CVEsFeb 2026: 31 CVEs · rank #36Mar 2026: 38 CVEs · rank #41Apr 2026: 34 CVEs · rank #40May 2026: 50 CVEs · rank #37Jun 2026: 37 CVEs · rank #46Jul 2026: below the top 50 that month, 39 or fewer CVEsAug 2026: 60 CVEs · rank #41Sep 2026: 92 CVEs · rank #34Oct 2026 so far: 61 CVEs · rank #32
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
- #1 in Sep 2002
- Busiest month
- Sep 2026, 92 CVEs
- First on the list
- Sep 2002
- On the top 50 list
- 108 of 271 monthly snapshots