msrc advisory

In early 2026, CVE-2026-23110 became a good example of how security researchers, patch trackers, and enterprise defenders can end up chasing the same bug through very different windows of visibility. The vulnerability itself is straightforward enough on the surface: it is a Linux kernel...

Microsoft’s report-confidence field on the MSRC page for CVE-2026-23658 is best read as a measure of how certain Microsoft is that the vulnerability really exists and how credible the technical details are. In practical terms, it is not saying “how severe” the bug is; it is saying how much trust...

Microsoft’s short MSRC attestation — “Azure Linux includes this open‑source library and is therefore potentially affected” — is accurate for the product it names, but it is not a categorical guarantee that no other Microsoft product could ship the same vulnerable Linux kernel component; Azure...

Microsoft’s brief advisory entry for CVE-2026-20865 — registered under the Windows Management Services component — signals an elevation‑of‑privilege condition that administrators should treat as urgent, but the vendor’s public record is terse and the complete technical details remain scarce in...

Microsoft’s Security Response Center has recorded CVE‑2025‑64675 as a spoofing vulnerability affecting Azure Cosmos DB, but the public technical detail is deliberately sparse and important aspects — exploitability, root cause, and a public proof‑of‑concept — remain unconfirmed, leaving defenders...

Microsoft has published an update addressing CVE-2025-59278, a Windows authentication elevation-of-privilege flaw that allows a locally authorized attacker to gain higher system privileges through improper input validation in Windows authentication methods—security teams should treat this as a...

Microsoft has published an advisory for CVE-2025-59261, a time-of-check, time-of-use (TOCTOU) race-condition in the Windows Graphics Component that can allow an authenticated local user to escalate privileges to a higher local authority on affected systems. Background / Overview The Windows...

Microsoft has confirmed an information‑disclosure vulnerability affecting .NET, .NET Framework and Visual Studio — tracked as CVE‑2025‑55248 — and published cumulative security updates on October 14, 2025 to address it; public vulnerability trackers rate the flaw as medium (CVSS 3.1 = 4.8) and...

Microsoft’s Security Update Guide lists CVE-2025-59286 as a “Copilot — Spoofing” entry, but a comprehensive public record and corroborating technical details for that exact identifier are not readily available in third‑party indexes at this time — treat the advisory as vendor‑asserted while you...

Microsoft’s advisory for CVE-2025-59216 describes a race-condition vulnerability in the Windows Graphics Component that can allow an authenticated local attacker to elevate privileges if they can win a timing window. Executive summary What it is: CVE-2025-59216 is a “concurrent execution using...

Short answer up front — I can write the 2,000+ word WindowsForum.com feature you asked for, but I need one quick clarification before I start: I can't find any public record for CVE‑2025‑59220. Public trackers and vendor records instead show multiple Windows “Bluetooth Service”...

Microsoft’s Security Response Center (MSRC) has published an advisory for CVE-2025-54103 describing a use‑after‑free flaw in the Windows Management Service that can allow an unauthorized local user to elevate privileges on a vulnerable host. The vendor-classification marks this as an...

CVE-2025-54091 — Windows Hyper‑V integer overflow / wraparound (local elevation of privilege) Summary (one‑line) An integer overflow or wraparound in a Windows Hyper‑V component can be triggered by an authorized local actor and may lead to local elevation of privilege (EoP) on the Hyper‑V host...

Microsoft’s Security Update Guide lists CVE-2025-54092 as a privilege‑escalation vulnerability in Windows Hyper‑V: the issue is described as a concurrent execution using a shared resource with improper synchronization (a race condition) that an authorized local attacker could leverage to elevate...

Microsoft’s Security Update Guide lists CVE-2025-53808 as an Elevation of Privilege vulnerability in the Windows Defender Firewall Service that stems from an “access of resource using incompatible type” (commonly called type confusion), and the vendor warns that a locally authorized attacker...

Microsoft has published an advisory for CVE-2025-53801: an untrusted pointer dereference in the Windows Desktop Window Manager (DWM) Core Library that can be triggered by an authorized local user to elevate privileges on affected systems. The flaw resides in DWM’s memory handling and, when...

Microsoft has published an advisory for CVE-2025-54906, a Microsoft Office vulnerability described as a “free of memory not on the heap” condition that can lead to local remote‑code‑execution (RCE) when a user opens or previews a specially crafted Office document; Microsoft lists the...

Microsoft has published an advisory for CVE-2025-54903, a use‑after‑free vulnerability in Microsoft Excel that can lead to local code execution when a victim opens a specially crafted spreadsheet — a document‑based remote code execution (RCE) risk that should be treated as high priority for both...

Microsoft’s advisory for CVE-2025-54895 warns that an integer overflow or wraparound in the SPNEGO Extended Negotiation (NEGOEX) security mechanism can be triggered by an authorized local actor to elevate privileges, turning a legitimate local account into a pathway to SYSTEM-level control if...

Microsoft’s Security Response Center has published an advisory for CVE-2025-49755, a user‑interface (UI) misrepresentation — spoofing — vulnerability affecting Microsoft Edge (Chromium‑based) on Android devices, a flaw that allows a remote attacker to present misleading or falsified UI elements...