https://patchsiren.com/cves/krontech/cve-2021-447952026-05-25 https://patchsiren.com/cves/krontech/cve-2021-447932026-05-25 https://patchsiren.com/cves/krontech/cve-2021-447922026-05-25 https://patchsiren.com/cves/krontech/cve-2021-447942026-05-25