Security News
"Windows devices might face VPN connection failures after installing the April 2024 security update or the April 2024 non-security preview update," Redmond explains on the Windows health dashboard. The list of impacted Windows versions includes Windows 11, Windows 10, and Windows Server 2008 and later.
Microsoft has fixed a known issue causing NTLM authentication failures and domain controller reboots after installing last month's Windows Server security updates. [...]
For May 2024 Patch Tuesday, Microsoft has released fixes for 59 CVE-numbered vulnerabilities, including two zero-days actively exploited by attackers. CVE-2024-30051 is a heap-based buffer overflow vulnerability affecting the Windows DWM Core Library that can be exploited to elevate attackers' privileges on a target system.
Microsoft has fixed a zero-day vulnerability exploited in attacks to deliver QakBot and other malware payloads on vulnerable Windows systems. Kaspersky security researchers discovered the vulnerability while investigating another Windows DWM Core Library privilege escalation bug tracked as CVE-2023-36033 and also exploited as a zero-day in attacks.
Today is Microsoft's May 2024 Patch Tuesday, which includes security updates for 61 flaws and three actively exploited or publicly disclosed zero days. The total count of 61 flaws does not include 2 Microsoft Edge flaws fixed on May 2nd and four fixed on May 10th. To learn more about the non-security updates released today, you can review our dedicated articles on the new Windows 11 KB5037771 cumulative update and the Windows 10 KB5037768 update.
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AT&T's email servers are blocking connections from Microsoft 365 due to a "High volume" spam wave originating from Microsoft's service. Starting on Monday, AT&T customers began reporting they could no longer receive email from Microsoft 365 email addresses.
Microsoft has confirmed that last month's Windows Server security updates may also cause domain controller reboots after the Local Security Authority Subsystem Service process crashes. "In rare instances, Windows Servers running the Domain Controller role might experience Local Security Authority Subsystem Service crashes resulting in a reboot," Microsoft explains in a new update added to the Windows release health dashboard.
Microsoft is testing showing memory speeds as MT/s rather than MHz in the Windows 11 Task Manager. MHz represents how many millions of cycles per second a memory module can perform, with each cycle being an action conducted on the memory module, such as storing and retrieving data.
Czechia and Germany on Friday revealed that they were the target of a long-term cyber espionage campaign conducted by the Russia-linked nation-state actor known as APT28, drawing condemnation from...