A universal decryptor has been made available to affected organizations. Microsoft is looking for reports about vulnerabilities of Critical or Important severity reproducible on a fully patched operating system (iOS or Android) and the latest version of the corresponding Microsoft Teams mobile application. Researchers flag 7-years-old privilege escalation flaw in Linux kernel (CVE-2021-33909) in the Linux kernel’s filesystem layer that may allow local, unprivileged attackers to gain root privileges on a vulnerable host. A zero-day PoC exploit has been released.
Source: https://www.helpnetsecurity.com/2021/07/25/week-in-review-hivenightmare-on-windows-10-kaseya-obtains-revil-decryptor/