Critical Microsoft Excel bug weaponizes Copilot Agent
The critical Excel flaw CVE-2026-26144 enables zero-click data exfiltration using Copilot Agent, part of Microsoft’s March 2026 Patch Tuesday fixing 83 vulnerabilities.
7 Articles
7 Articles
Critical Microsoft Excel bug weaponizes Copilot Agent
Could steal sensitive personal and financial data After a whopper of a Patch Tuesday last month, with six Microsoft flaws exploited as zero-days, March didn't exactly roar in like a lion. Just two of the 83 Microsoft CVEs released on Tuesday are listed as publicly known, and none is under active exploitation, which we're sure is a welcome change to sysadmins.…
Microsoft’s monthly Patch Tuesday is first in 6 months with no actively exploited zero-days
Microsoft addressed 83 vulnerabilities that cut across its broad portfolio of enterprise software and underlying services in its latest security update. The company’s Patch Tuesday release contained no actively exploited zero-day vulnerabilities and six defects it described as more likely to be exploited. The vendor’s batch of patches marks the first monthly update without an actively exploited zero-day in six months. The “lack of bugs under ac…
Microsoft Patch Tuesday for March 2026 — Snort rules and prominent vulnerabilities
Microsoft has released its monthly security update for March 2026 which includes 79 vulnerabilities, including three that Microsoft marked as “critical.” This article has been indexed from Cisco Talos Blog Read the original article: Microsoft Patch Tuesday for March 2026 — Snort rules and prominent vulnerabilities The post Microsoft Patch Tuesday for March 2026 — Snort rules and prominent vulnerabilities appeared first on IT Security News.
March Patch Tuesday: Three high severity holes in Microsoft Office
Three high severity holes in Microsoft’s Office suite headline the 78 issues listed in the March Patch Tuesday releases, which, grateful CSOs will notice, contain no surprise zero day vulnerabilities. Still, Jack Bicer, director of vulnerability research at Action1, says these Office-related flaws should be treated “with urgency.” “Productivity tools remain one of the most common entry points for attackers,” he explained, “and vulnerabilities th…
It's the second Tuesday of the month again, which traditionally means Patch Tuesday for Microsoft. The security updates for March 2026 are now available. Users of Windows 11 version 26H1 (presumably very few) will receive KB5079466. ...See the article: Windows 11: March Patch Tuesday 2026 brings security updates and fixes
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