The other two zero days being patched are CVE-2024-49040, a flaw in Exchange rated “important” that could allow an attacker to spoof the email address of a sender, and CVE-2024-49019, an elevation of privileges flaw in Active Directory (AD) which an attacker could use to gain the powers of a domain admin.

It’s been another busy Patch Tuesday for system administrators, with Microsoft releasing updates for nearly 100 vulnerabilities, four of which are classed as zero-days. Microsoft classifies a zero-day flaw as a CVE that has been publicly disclosed or actively exploited before a patch is available.

Don't be a turkey – get these fixed Patch Tuesday Patch Tuesday has swung around again, and Microsoft has released fixes for 89 CVE-listed security flaws in its products – including two under active attack – and reissued three more.

On Patch Tuesday, Windows systems will be updated with a flood of security fixes. In November, Windows patched four zero-day vulnerabilities, two of which have been exploited. Patch Tuesdays are a good time for admin teams to remind employees of the importance of keeping operating systems and applications up to date.

These updates will be rolled out to all supported Windows 10 and Windows 11 PCs over the coming days. Apple is the last one to show up to the AI party, but how does its Clean Up tool compare to Samsung's Object Eraser?