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CWE-266

1,042 CVEs across 29 months on the top 50 list since Jan 2013. Peak rank #20 in Sep 2025.

CWE-266 CVEs per month since Jan 2013

Oct 2021 to Sep 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
Oct 2021: 6 CVEs · rank #48Nov 2021: not on the top 50 that monthDec 2021: not on the top 50 that monthJan 2022: not on the top 50 that monthFeb 2022: not on the top 50 that monthMar 2022: not on the top 50 that monthApr 2022: not on the top 50 that monthMay 2022: not on the top 50 that monthJun 2022: not on the top 50 that monthJul 2022: not on the top 50 that monthAug 2022: not on the top 50 that monthSep 2022: not on the top 50 that monthOct 2022: 8 CVEs · rank #48Nov 2022: not on the top 50 that monthDec 2022: not on the top 50 that monthJan 2023: not on the top 50 that monthFeb 2023: not on the top 50 that monthMar 2023: not on the top 50 that monthApr 2023: not on the top 50 that monthMay 2023: not on the top 50 that monthJun 2023: not on the top 50 that monthJul 2023: not on the top 50 that monthAug 2023: not on the top 50 that monthSep 2023: not on the top 50 that monthOct 2023: not on the top 50 that monthNov 2023: not on the top 50 that monthDec 2023: not on the top 50 that monthJan 2024: not on the top 50 that monthFeb 2024: not on the top 50 that monthMar 2024: not on the top 50 that monthApr 2024: not on the top 50 that monthMay 2024: not on the top 50 that monthJun 2024: not on the top 50 that monthJul 2024: not on the top 50 that monthAug 2024: 13 CVEs · rank #42Sep 2024: not on the top 50 that monthOct 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 so far: 54 CVEs · rank #37

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
29 of 165 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.

MethodologyAll months on record

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