It's the second Tuesday of the month, and Microsoft has released another set of security updates to fix a total of 97 flaws impacting its software, one of which has been actively exploited in ransomware attacks in the wild.
Seven of the 97 bugs are rated Critical and 90 are rated Important in severity. Interestingly, 45 of the shortcomings are remote code execution flaws, followed by 20 elevation of privilege vulnerabilities. The updates also follow fixes for 26 vulnerabilities in its Edge browser that were released over the past month.
The security flaw that's come under active exploitation is CVE-2023-28252 (CVSS score: 7.8), a privilege escalation bug in the Windows Common Log File System (CLFS) Driver.
"An attacker who successfully exploited this vulnerability could gain SYSTEM privileges," Microsoft said in an advisory, crediting researchers Boris Larin, Genwei Jiang, and Quan Jin for reporting the issue.
CVE-2023-28252 is the fourth privilege escalation flaw in the CLFS component that has come under active abuse in the past year alone after CVE-2022-24521, CVE-2022-37969, and CVE-2023-23376 (CVSS scores: 7.8). At least 32 vulnerabilities have been identified in CLFS since 2018.
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