CISA orders agencies to patch new Windows zero-day used in attacks

CISA has added an actively exploited local privilege escalation vulnerability in the Windows Client/Server Runtime Subsystem to its list of bugs abused in the wild.

This high severity security flaw impacts both server and client Windows platforms, including the latest Windows 11 and Windows Server 2022 releases.

CISA has given the agencies three weeks, until August 2nd, to patch the actively exploited CVE-2022-22047 vulnerability and block ongoing attacks that could target their systems.

According to a binding operational directive issued in November, all Federal Civilian Executive Branch Agencies agencies are required to secure their networks against security flaws added to CISA’s catalog of Known Exploited Vulnerabilities.

Although the BOD 22-01 directive only applies to US federal agencies, CISA also strongly urges all organizations across the US to fix this Windows CSRSS elevation of privilege bug to thwart attackers’ attempts to escalate privileges on unpatched Windows systems.

Since BOD 22-01 was issued, CISA has added hundreds of security vulnerabilities to its list of bugs exploited in attacks, ordering US federal agencies to patch their systems as soon as possible to prevent breaches.

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