Microsoft has issued six bug fixes in its latest monthly security update.
The company said that the March edition of its "Patch Tuesday" security updates would remedy a total of seven security flaws in Windows, Visual Studio and Expression Design.
Among the most serious vulnerabilities addressed in the update is a flaw in the Windows Remote Desktop Protocol (RDP) component. If exploited, the flaw could allow an attacker to remotely execute code on a targeted system.
Microsoft has listed the RDP flaw as a top deployment priority.
Dave Marcus, head of research and communications for McAfee Labs, said that administrators should take heed to the company's warning.
"This bulletin should be considered a top priority, as there is a risk of not just remote code execution attack, but unauthenticated remote code execution attacks," Marcus said.
"An unauthenticated remote code execution vulnerability, in an application as widely deployed in enterprises as Remote Desktop, should not to be taken lightly."
In addition to the lone critical fix, the company has released four bulletins which have been rated as 'important' fixes. The patches will remedy a remote code execution flaw in Expression Design and an elevation of privilege error in Visual Studio. Windows will receive patches for elevation of privilege and denial of service flaws.
The sixth patch, rated by Microsoft as 'moderate,' addresses a denial of service vulnerability in Windows.
Microsoft's release comes just one day after Apple issued an update for vulnerabilities in the Windows and OS X versions of its Safari browser. Google has also patched its Chrome browser, addressing flaws uncovered in its Pwnium hacking contest.
Apple will roll an update out 'soon'
Google already claims to carry as much as 25 per cent of global internet traffic
Oracle's 237-fix Patch Tuesday comprises patches for critical flaws in MICROS retail systems and Oracle E-Business Suite
Fusion Middleware, PeopleSoft and MySQL also patched in Oracle's latest Critical Patch Update
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