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CWE-266

1,129 CVEs across 30 months on the top 50 list since Jan 2013. Peak rank #20 in Sep 2025.

CWE-266 CVEs per month since Jan 2013

Nov 2021 to Oct 2026 in the lens. Point at a month to read it, or drag the frame to move through the record.Tallest in the lens: 105, Jun 2026
Nov 2021: below the top 50 that month, 6 or fewer CVEsDec 2021: below the top 50 that month, 7 or fewer CVEsJan 2022: below the top 50 that month, 7 or fewer CVEsFeb 2022: below the top 50 that month, 7 or fewer CVEsMar 2022: below the top 50 that month, 7 or fewer CVEsApr 2022: below the top 50 that month, 8 or fewer CVEsMay 2022: below the top 50 that month, 7 or fewer CVEsJun 2022: below the top 50 that month, 8 or fewer CVEsJul 2022: below the top 50 that month, 8 or fewer CVEsAug 2022: below the top 50 that month, 9 or fewer CVEsSep 2022: below the top 50 that month, 8 or fewer CVEsOct 2022: 8 CVEs · rank #48Nov 2022: below the top 50 that month, 8 or fewer CVEsDec 2022: below the top 50 that month, 8 or fewer CVEsJan 2023: below the top 50 that month, 7 or fewer CVEsFeb 2023: below the top 50 that month, 9 or fewer CVEsMar 2023: no snapshot, the run for this month failedApr 2023: below the top 50 that month, 9 or fewer CVEsMay 2023: below the top 50 that month, 9 or fewer CVEsJun 2023: below the top 50 that month, 8 or fewer CVEsJul 2023: below the top 50 that month, 8 or fewer CVEsAug 2023: below the top 50 that month, 9 or fewer CVEsSep 2023: below the top 50 that month, 7 or fewer CVEsOct 2023: below the top 50 that month, 8 or fewer CVEsNov 2023: below the top 50 that month, 8 or fewer CVEsDec 2023: below the top 50 that month, 8 or fewer CVEsJan 2024: below the top 50 that month, 9 or fewer CVEsFeb 2024: below the top 50 that month, 11 or fewer CVEsMar 2024: below the top 50 that month, 8 or fewer CVEsApr 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: below the top 50 that month, 10 or fewer CVEsAug 2024: 13 CVEs · rank #42Sep 2024: below the top 50 that month, 9 or fewer CVEsOct 2024: 17 CVEs · rank #39Nov 2024: 20 CVEs · rank #38Dec 2024: 24 CVEs · rank #27Jan 2025: 34 CVEs · rank #27Feb 2025: 13 CVEs · rank #50Mar 2025: 49 CVEs · rank #24Apr 2025: 55 CVEs · rank #22May 2025: 27 CVEs · rank #32Jun 2025: 36 CVEs · rank #28Jul 2025: 22 CVEs · rank #35Aug 2025: 38 CVEs · rank #27Sep 2025: 63 CVEs · rank #20Oct 2025: 27 CVEs · rank #33Nov 2025: 25 CVEs · rank #32Dec 2025: 40 CVEs · rank #28Jan 2026: 32 CVEs · rank #33Feb 2026: 53 CVEs · rank #29Mar 2026: 54 CVEs · rank #35Apr 2026: 36 CVEs · rank #38May 2026: 45 CVEs · rank #38Jun 2026: 105 CVEs · rank #26Jul 2026: 51 CVEs · rank #40Aug 2026: 93 CVEs · rank #31Sep 2026: 81 CVEs · rank #37Oct 2026 so far: 60 CVEs · rank #33

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
#20 in Sep 2025
Busiest month
Jun 2026, 105 CVEs
First on the list
Jan 2013
On the top 50 list
30 of 148 monthly snapshots

Each monthly snapshot keeps the top 50 weakness classes by CVEs. A month below the cut shows the most it could have had: the smallest count that made the list. 18 months have no snapshot because the run failed.

MethodologyAll months on record