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Microsoft is removing Microsoft Defender Application Guard (MDAG) for Office from Microsoft 365 desktop apps, with the feature scheduled for phased removal beginning in early 2026 and complete removal by December 2027—documents that once opened inside a Hyper‑V backed, containerized Application...

Microsoft’s Security Update Guide lists CVE-2025-54910 as a heap-based buffer overflow in Microsoft Office that can allow an attacker to execute code locally when a crafted Office document is processed, but the vendor’s advisory requires direct inspection for exact builds and KB identifiers...

Microsoft has published an advisory for CVE-2025-54900, a heap‑based buffer overflow in Microsoft Excel that can allow an attacker to execute code on a victim machine when a crafted spreadsheet is opened — an issue administrators and home users should treat as high priority for patching and...

Microsoft’s Security Update Guide lists CVE-2025-55243 as a spoofing vulnerability in Microsoft OfficePlus that can lead to the exposure of sensitive information and enable an attacker to perform spoofing over a network, but key public mirrors and automated scrapers offer limited or inconsistent...

Microsoft’s advisory link for CVE-2025-54908 points to a PowerPoint use‑after‑free that “allows an unauthorized attacker to execute code locally,” but that specific CVE number could not be corroborated in public vulnerability trackers at the time of verification; when attempting to load the...

Microsoft's advisory confirms a use‑after‑free flaw in Microsoft Excel that can lead to local code execution when a specially crafted spreadsheet is opened, creating a potentially serious escalation path on unpatched systems. Overview This vulnerability, tracked as CVE‑2025‑54904, is listed in...

Thanks — I can write the 2,000+ word feature article, but first a quick verification step. I tried to load the MSRC page you linked but the Security Update Guide is rendered dynamically and I couldn’t extract the advisory text from that URL. I also could not find a matching CVE-2025-54905 entry...

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...

A newly disclosed Microsoft Excel vulnerability tracked as CVE-2025-54902 is an out‑of‑bounds read flaw in Excel’s file‑parsing logic that Microsoft warns could allow an attacker to achieve code execution on a targeted machine when a user opens a specially crafted spreadsheet, and organizations...

Microsoft’s security tracker now lists CVE-2025-54899 as a memory-safety flaw in Microsoft Excel that can lead to local code execution when a crafted spreadsheet is opened — an entry that joins a steady stream of Excel parsing bugs that remain a favored initial-access vector for attackers...

Microsoft’s security tracker lists CVE-2025-54898 as an out-of-bounds read vulnerability in Microsoft Excel that can be triggered by a crafted spreadsheet and may allow an attacker to achieve local code execution when a user opens a malicious file. Background Microsoft Excel remains one of the...

Microsoft has published an advisory for CVE-2025-54896: a use-after-free vulnerability in Microsoft Office Excel that, when exploited via a specially crafted workbook, can lead to code execution in the context of the user who opens the file. This class of bug is a recurring and high-consequence...

A newly disclosed memory-corruption flaw in Microsoft Word—tracked as CVE-2025-53784—has been classified as a use-after-free vulnerability that can allow an attacker to execute code locally when a victim opens or previews a specially crafted document. Microsoft’s Security Update Guide lists this...

CVE-2025-53740 — Microsoft Office “use‑after‑free” (local code execution) An in‑depth feature for security teams, admins and threat hunters Summary (tl;dr) CVE-2025-53740 is reported by Microsoft as a use‑after‑free (CWE‑416) memory‑corruption flaw in Microsoft Office that can allow an attacker...

Microsoft’s Security Response Center has published an advisory listing CVE-2025-53739 — an Excel vulnerability described as “Access of resource using incompatible type (‘type confusion’)” that can lead to code execution when a crafted spreadsheet is processed by the desktop client. Background /...

Microsoft has confirmed a use‑after‑free vulnerability in Microsoft Office Visio — tracked as CVE‑2025‑53734 — that can be triggered when a user opens a specially crafted Visio file and may allow an attacker to execute code in the context of the current user; Microsoft’s advisory entry is live...

Microsoft’s Security Update Guide lists CVE-2025-53736 as a Microsoft Word information-disclosure vulnerability caused by a buffer over-read in Word that can allow an unauthorized local actor to read memory and disclose sensitive information on a victim machine; administrators are strongly...

Microsoft has confirmed a use‑after‑free vulnerability in Microsoft Excel (tracked as CVE‑2025‑53735) that can lead to local code execution when a crafted spreadsheet is opened — a serious document‑based attack vector that demands immediate attention from IT teams and security‑minded users...

Headline: CVE-2025-53733 — What you need to know about the new Microsoft Word RCE caused by incorrect numeric conversions Lede: Microsoft has published advisory CVE-2025-53733 for a remote‑code‑execution class bug in Microsoft Office Word described as an “incorrect conversion between numeric...