Vulnerabilities Year To Date CISA KEV

# Vulnerabilities Year To Date CISA KEV

## Query Information

#### Description
This query uses the CISA Known Exploited Vulnerabilities Catalog to list the vulnerabilities year to date by vendor. This can be used to analyze how many vulnerabilities have been added for each vendor and their products.

#### References
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog

## Defender XDR
```KQL
let KnowExploitesVulnsCISA = externaldata(CVEId: string, Vendor: 
    string, Product: string, VulnerabilityName: string, DateAdded: datetime, 
    Description: string, RequiredAction: string, DueDate: datetime, 
    Notes: string)
    [@"https://www.cisa.gov/sites/default/files/csv/known_exploited_vulnerabilities.csv"] 
    with (format="csv", ignoreFirstRecord=True);
KnowExploitesVulnsCISA
| where DateAdded between (startofyear(now()) .. startofweek(endofyear(now())))
| summarize Total = dcount(CVEId) by Vendor
```

## Sentinel
```KQL
let KnowExploitesVulnsCISA = externaldata(CVEId: string, Vendor: 
    string, Product: string, VulnerabilityName: string, DateAdded: datetime, 
    Description: string, RequiredAction: string, DueDate: datetime, 
    Notes: string)
    [@"https://www.cisa.gov/sites/default/files/csv/known_exploited_vulnerabilities.csv"] 
    with (format="csv", ignoreFirstRecord=True);
KnowExploitesVulnsCISA
| where DateAdded between (startofyear(now()) .. startofweek(endofyear(now())))
| summarize Total = dcount(CVEId) by Vendor
```