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Microsoft Patch Tuesday: Prioritize Browser Updates

All of the critical vulnerabilities Microsoft patched on March 13 were within, and related to, browsers.

Microsoft today addressed 75 unique vulnerabilities as part of its monthly Patch Tuesday update: of these, 14 flaws were categorized as critical and 61 as important. None were listed as under active attack.

Two of the flaws patched this month had been publicly disclosed. One of these was CVE-2018-0886, a CredSSP remote code execution bug that could enable an attacker to control a domain server and other systems throughout the network. Another is CVE-2018-0940, a privilege escalation vulnerability in Exchange Outlook Web Access (OWA) that would let an attacker replace a legitimate OWA interface with a fake login page.

Many key patches released for this month address flaws in the browser, points out Jimmy Graham, director of product management at Qualys. Microsoft issued 21 browser-related fixes, which included the 14 total bugs rated as Critical on Patch Tuesday.

"All of the critical vulnerabilities from Microsoft are in browsers and browser-related technologies," he notes. "It is recommended that these be prioritized for workstation-type devices. Any system that accesses the Internet via a browser should be patched."

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