microsoft security

BeyondTrust’s 13th annual Microsoft Vulnerabilities Report, released April 21, 2026, says Microsoft disclosed 1,273 vulnerabilities across its software ecosystem in 2025, down 6 percent from 2024, while critical flaws doubled from 78 to 157 across Windows, Office, Azure, Dynamics 365, Edge, and...

Microsoft is pitching an integrated “agentic enterprise” platform that ties GitHub, Microsoft Foundry, Microsoft IQ, Agent 365, Entra, Purview, Defender, Fabric, Teams, and Microsoft 365 into a governed system for building, running, securing, and improving AI agents across business operations...

On May 15, 2015, Microsoft clarified that PCs running non-genuine Windows would not receive the standard free Windows 10 upgrade, but said it and OEM partners planned “very attractive” offers to help those users move to legitimate Windows 10 installations. That was not amnesty, and it was not...

Microsoft on April 30, 2026, announced new Microsoft Security capabilities spanning Agent 365, Microsoft Defender, GitHub Advanced Security, and Microsoft Purview, with previews for AI-agent threat protection and a generally available Defender for Cloud integration with GitHub. The news is less...

The short answer is that “remote code execution” in Microsoft’s naming does not always mean the attacker must literally trigger the bug over the network. It means the vulnerability can let an attacker execute code on a remote victim system rather than only affecting the attacker’s own machine...

Microsoft’s CVE-2026-23666 entry is a useful reminder that not every vulnerability comes with a full public autopsy. In this case, Microsoft’s own confidence metric is doing as much signaling as the CVE title itself: the issue is acknowledged, the impact is documented as a denial of service, but...

How to pass AZ-900 and AZ-500 successfully comes down to one thing: treating them as two different kinds of exams, not two versions of the same test. AZ-900 is designed to prove foundational Azure knowledge, while AZ-500 is built for candidates who can secure real cloud environments and...

Overview Microsoft’s description for CVE-2026-21713 points to an important nuance in vulnerability scoring: the flaw is not reliably exploitable “at will,” but instead depends on conditions outside the attacker’s direct control. In practical terms, that usually means exploitation may require...

Microsoft’s CVE-2026-21717 entry is, on its face, another reminder that not every dangerous vulnerability is a data-theft story. Some bugs are about availability, and that can be just as disruptive as full compromise when the affected component sits on a critical path. The description attached...

Microsoft’s RSAC 2026 presence was supposed to showcase AI-first security, not trigger a fresh round of nostalgic panic over the Blue Screen of Death. Yet that is exactly what happened when an eagle-eyed attendee spotted two suspiciously period-correct BSOD-style displays at the company’s...

Microsoft’s CVE pages are often the first place administrators, analysts, and reporters look when a new flaw lands in Windows, Office, Exchange, or another Microsoft product. When that page is unavailable, slow, or difficult to navigate, it can feel like the whole disclosure process has gone...

Microsoft’s Security Update Guide entry for CVE-2026-26136 is exactly the sort of page security teams want to trust — and exactly the sort of page that deserves a careful “what do we actually know?” review. The challenge is that Microsoft’s update-guide pages are increasingly rich with...

SentinelOne’s CEO Tomer Weingarten didn’t mince words in a recent on-air interview: he argued that “Microsoft has the most vulnerabilities” and used that claim to restate a perennial security debate — whether organizations should accept a single-vendor security stack from their operating-system...

Microsoft’s weekend hotpatch and the company’s full-court press on AI investment together sketch a clear strategic thesis — but they also expose a set of operational and market risks that investors and IT teams must weigh carefully. On the one hand, Microsoft moved quickly in mid‑March 2026 to...

Microsoft’s public advisory that “Azure Linux includes this open‑source library and is therefore potentially affected” is a product‑level inventory attestation — it confirms Azure Linux images were found to contain the vulnerable Linux kernel component behind CVE‑2025‑37915, but it is not a...

Microsoft quietly acknowledged a painful truth this week: when your software runs the world, sometimes it needs a babysitter — and Microsoft has just shuffled the people charged with doing the babysitting. Background Satya Nadella announced in an internal memo posted to the company blog that...

Microsoft’s public concession that Windows 11 has slid past “annoying” into a systemic quality problem is the most consequential signal yet: engineers are being redirected into tactical “swarming” teams to triage a wave of regressions that culminated in emergency out‑of‑band patches and, for a...

Microsoft’s security partner ecosystem just got a new set of headline recognitions: the winners of the 2026 Microsoft Security Excellence Awards were announced following an event in Redmond on January 26, 2026, spotlighting partners that have pushed the boundaries of AI‑enabled defense, Zero...

Microsoft’s security trackers show a new entry for CVE-2026-21520 — an information‑disclosure vulnerability affecting Cotheilot Studio — but public technical details are intentionally sparse and the vendor record currently provides more affirmation of existence than a full exploit recipe...

For decades, Microsoft has presented privacy and security not as competing priorities but as mutually reinforcing obligations—and the company’s recent Deputy CISO commentary lays out how that philosophy is engineered into products, programs, and governance at global scale. Background Microsoft’s...