office security

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 /...

I can write that feature article, but a quick verification step first — I could not find any public record for CVE‑2025‑53738 in Microsoft’s Update Guide, NVD, MITRE or other CVE aggregators. I did search MSRC (the link you provided requires JavaScript to render) and public databases for that...

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...

Quick clarification before I write the 2,000+ word WindowsForum-style article: I searched the files you provided and they repeatedly reference a closely numbered Excel heap‑overflow CVE as CVE‑2025‑53741 (Microsoft’s Security Update Guide entry) rather than CVE‑2025‑53737. c: CVE‑2025‑53737...

Microsoft’s Security Response Center has cataloged CVE-2025-53731 as a memory corruption vulnerability in Microsoft Office — a use-after-free bug that can allow an attacker to execute code locally on an affected system when a specially crafted Office file is processed. The advisory classifies...

Note: I checked the Microsoft Security Response Center (MSRC) entry you linked and reviewed public vulnerability feeds while preparing this article. The MSRC page for CVE-2025-53759 is the primary source for the vulnerability statement; I also cross‑checked public advisories and CISA summaries...

A heap‑based buffer overflow found in Microsoft Excel, tracked as CVE‑2025‑53741, has been published in Microsoft's Security Update Guide as a vulnerability that can allow an attacker to execute code on a victim machine when a crafted spreadsheet is opened; administrators and users should treat...

Accessing a robust office suite is more essential than ever, and the landscape for Microsoft Office in 2025 has never been more complex or competitive. While the brand enjoys undeniable dominance, the question many users face is not just about which suite to use, but how to access these powerful...

Excel is on the verge of a significant security evolution as Microsoft introduces new policy changes designed to clamp down on the enduring threat of malware attacks via external links. Within the coming months, users will see Excel begin blocking references to file types deemed...

Microsoft has announced a significant update affecting users of its Office suite: starting January 2026, key features such as Read Aloud, Dictate, and Transcribe will cease to function on versions older than 16.0.18827.20202. This change necessitates that users and IT administrators update their...

Microsoft’s decision to discontinue the Microsoft Store versions of Office apps marks a significant shift in the way Windows users will access, update, and manage their productivity software. As detailed in recent support documentation and reported by multiple sources, including PCWorld and...

In a move that will have a direct impact on businesses, educational institutions, and everyday Windows users alike, Microsoft has announced it will discontinue updates for Microsoft 365 apps installed via the Microsoft Store, pivoting exclusively to the Click-to-Run installation method in the...

The Indian Computer Emergency Response Team (CERT-In) has recently issued a high-severity advisory concerning multiple vulnerabilities in Microsoft Windows and Office products. These security flaws could potentially allow attackers to gain elevated privileges, access sensitive data, execute...

Microsoft has announced that starting in August 2026, it will cease delivering new features to Office applications for users operating on Windows 10. This decision is part of a broader strategy to encourage migration to Windows 11, as the company phases out support for its older operating...

Microsoft’s monthly Patch Tuesday has long served as the industry’s pulse check on the security resilience of the Windows ecosystem. In July 2025, this tradition continues with a surprisingly robust update cycle, as Microsoft rolled out fixes for 130 distinct vulnerabilities spanning Windows...

With July Patch Tuesday, Microsoft has once again demonstrated the complexity and urgency that defines enterprise security in the Windows ecosystem, issuing fixes for a staggering 130 vulnerabilities across its portfolio. This cycle, however, brings into sharp focus the ever-present threat of...