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Microsoft May 2026 Patch Tuesday: Many fixes, but no zero-days

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Microsoft May 2026 Patch Tuesday: Many fixes, but no zero-days 2026-05-13 at 00:31 By Zeljka Zorz Microsoft has marked May 2026 Patch Tuesday by releasing fixes for 120+ CVE-numbered vulnerabilities, none of which (for a change) are actively exploited or have been publicly disclosed. Still, some deserve more consideration and should be addressed sooner than […]

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Microsoft patches 80+ vulnerabilities, six flagged as “more likely” to be exploited

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Microsoft patches 80+ vulnerabilities, six flagged as “more likely” to be exploited 2026-03-11 at 12:31 By Zeljka Zorz On March 2026 Patch Tuesday, Microsoft addressed 80+ vulnerabilities affecting its software and cloud services. Of these, two were publicly disclosed, but not actively exploited. Privilege escalation vulnerabilities abound The two publicly disclosed flaws are CVE-2026-21262, a

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Russian hackers are exploiting recently patched Microsoft Office vulnerability (CVE-2026-21509)

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Russian hackers are exploiting recently patched Microsoft Office vulnerability (CVE-2026-21509) 2026-02-03 at 17:21 By Zeljka Zorz Russian state-sponsored hackers Fancy Bear (aka APT 28) are exploiting CVE-2026-21509, a Microsoft Office vulnerability for which Microsoft released an emergency fix last week. The exploitation CVE-2026-21509 allows unauthorized attackers to bypass a security feature (OLE mitigations in Microsoft

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Microsoft reveals actively exploited Office zero-day, provides emergency fix (CVE-2026-21509)

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Microsoft reveals actively exploited Office zero-day, provides emergency fix (CVE-2026-21509) 2026-01-27 at 11:22 By Zeljka Zorz Microsoft released emergency Office security updates to fix a security feature bypass vulnerability (CVE-2026-21509) that its threat intelligence and security teams spotted being exploited in the wild in zero-day attacks. Users and admins are advised to review the associated

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Patch Tuesday: Microsoft fixes actively exploited Windows kernel vulnerability (CVE-2025-62215)

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Patch Tuesday: Microsoft fixes actively exploited Windows kernel vulnerability (CVE-2025-62215) 2025-11-12 at 14:44 By Zeljka Zorz Microsoft has delivered a rather light load of patches for November 2025 Patch Tuesday: some 60+ vulnerabilities have received a fix, among them an actively exploited Windows Kernel flaw (CVE-2025-62215). CVE-2025-62215 CVE-2025-62215 is a memory corruption issue that stems

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Microsoft patches three zero-days actively exploited by attackers

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Microsoft patches three zero-days actively exploited by attackers 2025-10-15 at 13:18 By Zeljka Zorz On October 2025 Patch Tuesday, Microsoft released fixes for 175+ vulnerabilities, including three zero-days under active attack: CVE-2025-24990, CVE-2025-59230, and CVE-2025-47827. The actively exploited vulnerabilities are an unusual mix CVE-2025-24990 is in the third-party driver (ltmdm64.sys) for the software-based Agere Modem,

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Microsoft fixes “BadSuccessor” Kerberos vulnerability (CVE-2025-53779)

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Microsoft fixes “BadSuccessor” Kerberos vulnerability (CVE-2025-53779) 2025-08-13 at 15:20 By Zeljka Zorz For August 2025 Patch Tuesday, Microsoft has released security updates resolving 100+ security vulnerabilities in its various solutions, including a relative path traversal flaw in Windows Kerberos (CVE-2025-53779) that allows an authorized attacker to elevate privileges over a network as part of a

Microsoft fixes “BadSuccessor” Kerberos vulnerability (CVE-2025-53779) Read More »

Microsoft fixes critical wormable Windows flaw (CVE-2025-47981)

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Microsoft fixes critical wormable Windows flaw (CVE-2025-47981) 2025-07-09 at 14:31 By Zeljka Zorz For July 2025 Patch Tuesday, Microsoft has released patches for 130 vulnerabilities, among them one that’s publicly disclosed (CVE-2025-49719) and a wormable RCE bug on Windows and Windows Server (CVE-2025-47981). CVE-2025-49719 and CVE-2025-49717, in Microsoft SQL Server CVE-2025-49719 is an uninitialized memory

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Microsoft fixes zero-day exploited for cyber espionage (CVE-2025-33053)

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Microsoft fixes zero-day exploited for cyber espionage (CVE-2025-33053) 2025-06-11 at 14:16 By Zeljka Zorz For June 2025 Patch Tuesday, Microsoft has fixed 66 new CVEs, including a zero-day exploited in the wild (CVE-2025-33053). Also, Adobe Commerce and Magento Open Source users are urged to update quickly. About CVE-2025-33053 CVE-2025-33053 is a remote code execution vulnerability

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Microsoft fixes actively exploited Windows Hyper-V zero-day flaws

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Microsoft fixes actively exploited Windows Hyper-V zero-day flaws 2025-01-14 at 23:03 By Zeljka Zorz Microsoft has marked January 2025 Patch Tuesday with a hefty load of patches: 157 CVE-numbered security issues have been fixed in various products, three of which (in Hyper-V) are being actively exploited. The exploited Hyper-V vulnerabilities The exploited zero-days are CVE-2025-21333

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Phishers send corrupted documents to bypass email security

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Phishers send corrupted documents to bypass email security 2024-12-03 at 14:18 By Zeljka Zorz Phishers have come up with a new trick for bypassing email security systems: corrupted MS Office documents. The spam campaign Malware hunting service Any.Run has warned last week about email campaigns luring users with promises of payments, benefits and end-of-the-year bonuses.

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Microsoft fixes 6 zero-days under active attack

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Microsoft fixes 6 zero-days under active attack 2024-08-13 at 23:16 By Zeljka Zorz August 2024 Patch Tuesday is here, and Microsoft has delivered fixes for 90 vulnerabilities, six of which have been exploited in the wild as zero-days, and four are publicly known. The zero-days under attack CVE-2024-38178 is a Scripting Engine Memory Corruption Vulnerability

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Unpatched MS Office flaw may leak NTLM hashes to attackers (CVE-2024-38200)

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Unpatched MS Office flaw may leak NTLM hashes to attackers (CVE-2024-38200) 2024-08-12 at 13:31 By Zeljka Zorz A new MS Office zero-day vulnerability (CVE-2024-38200) can be exploited by attackers to grab users’ NTLM hashes, Microsoft has shared late last week. The vulnerability is exploitable remotely and requires no special privileges or user interaction to be

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Zero-day patched by Microsoft has been exploited by attackers for over a year (CVE-2024-38112)

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Zero-day patched by Microsoft has been exploited by attackers for over a year (CVE-2024-38112) 2024-07-10 at 15:46 By Zeljka Zorz CVE-2024-38112, a spoofing vulnerability in Windows MSHTML Platform for which Microsoft has released a fix on Tuesday, has likely been exploited by attackers in the wild for over a year, Check Point researcher Haifei Li

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Microsoft patches two zero-days exploited by attackers (CVE-2024-21412, CVE-2024-21351)

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Microsoft patches two zero-days exploited by attackers (CVE-2024-21412, CVE-2024-21351) 2024-02-13 at 22:01 By Zeljka Zorz On February 2024 Patch Tuesday, Microsoft has delivered fixes for 72 CVE-numbered vulnerabilities, including two zero-days (CVE-2024-21412, CVE-2024-21351) that are being leveraged by attackers in the wild. About CVE-2024-21412 and CVE-2024-21351 CVE-2024-21412 allows attackers to bypass the Microsoft Defender SmartScreen

Microsoft patches two zero-days exploited by attackers (CVE-2024-21412, CVE-2024-21351) Read More »

Microsoft fixes critical flaws in Windows Kerberos, Hyper-V (CVE-2024-20674, CVE-2024-20700)

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Microsoft fixes critical flaws in Windows Kerberos, Hyper-V (CVE-2024-20674, CVE-2024-20700) 2024-01-09 at 22:02 By Zeljka Zorz For January 2024 Patch Tuesday, Microsoft has released fixes for 49 CVE-numbered vulnerabilities, two of which are critical: CVE-2024-20674 and CVE-2024-20700. None of the vulnerabilities fixed this time aroundare under active exploitation or have been previously publicly disclosed. The

Microsoft fixes critical flaws in Windows Kerberos, Hyper-V (CVE-2024-20674, CVE-2024-20700) Read More »

August 2023 Patch Tuesday: Microsoft fixes critical bugs in Teams, MSMQ

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August 2023 Patch Tuesday: Microsoft fixes critical bugs in Teams, MSMQ 08/08/2023 at 22:46 By Zeljka Zorz August 2023 Patch Tuesday is here; among the 76 CVE-numbered issues fixed by Microsoft this time around is a DoS vulnerability in .NET and Visual Studio (CVE-2023-38180) for which proof-of-exploit code exists. Other than the fact that a

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Microsoft patches four exploited zero-days, but lags with fixes for a fifth (CVE-2023-36884)

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Microsoft patches four exploited zero-days, but lags with fixes for a fifth (CVE-2023-36884) 11/07/2023 at 22:31 By Zeljka Zorz For July 2023 Patch Tuesday, Microsoft has delivered 130 patches; among them are four for vulnerabilites actively exploited by attackers, but no patch for CVE-2023-36884, an Office and Windows HTML RCE vulnerability exploited in targeted attacks

Microsoft patches four exploited zero-days, but lags with fixes for a fifth (CVE-2023-36884) Read More »

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