Security Alerts
The latest Security Alerts coverage — news, analysis, and updates from the WindowsNews.AI desk.
CVE-2026-31682: Linux Bridge IPv6 Flaw Could Crash Virtualization Hosts — Patch Now
On April 25, 2026, the Linux kernel community published a fix for a memory safety flaw in the bridge networking subsystem, tracked as CVE-2026-31682. The vulnerability, which also appeared on...
CVE-2026-31681: The Linux Kernel Firewall Bug That Threatens Hybrid Windows Shops
On April 25, 2026, the National Vulnerability Database published a new Linux kernel vulnerability—CVE-2026-31681—in the netfilter subsystem’s xt_multiport module. The flaw allows a malformed...
Linux kernel crash bug in IPv6 flow labels puts WSL and Azure VMs at risk—patch now
A recently disclosed vulnerability in the Linux kernel can crash systems by triggering a race condition in the IPv6 flow label subsystem, and the fix isn’t just for native Linux boxes—Windows...
Microsoft Sounds Alarm on Linux Kernel Bug (CVE-2026-31669) That Puts Hybrid Environments at Risk
{ "title": "Microsoft Sounds Alarm on Linux Kernel Bug (CVE-2026-31669) That Puts Hybrid Environments at Risk", "content": "On April 24, 2026, the Microsoft Security Response Center published an...
CVE-2026-31649: stmmac Driver Flaw Exposes Network Appliances to DMA Risks
On April 24, 2026, a vulnerability in the Linux kernel’s stmmac Ethernet driver was published that could allow attackers to trigger memory disclosure or corruption on embedded devices. The flaw,...
Single Line of Code Patches a 20-Year-Old Linux IPv6 Firewall Bug
A pair of eyes on a decades-old Linux kernel module has uncovered a security flaw that could let attackers slip malicious IPv6 packets past a firewall check — and the fix boils down to removing a...
CVE-2026-31630: The Linux Kernel Off-by-One That Could Crash WSL and Linux Servers
On April 24, 2026, the U.S. National Vulnerability Database published CVE-2026-31630, a flaw in the Linux kernel that stems from a one-byte mistake—a buffer made just a byte too small to hold the...
Two Missing 'Return' Statements: Linux Kernel NFC Patch Stops Memory Corruption Bug
A missing “return” in two Linux kernel functions can trigger a use-after-free vulnerability that corrupts memory and opens the door to system compromise, according to a freshly disclosed CVE....
CVE-2026-31591: Linux KVM Race Condition Can Crash Servers Running AMD SEV-SNP Confidential VMs
A newly documented Linux kernel flaw (CVE-2026-31591) can crash physical servers that host AMD’s most secure confidential virtual machines. The bug sits in KVM’s handling of AMD Secure Encrypted...
CVE-2026-31639: Linux Kernel Key Leak Reaches Windows Networks – What to Patch Now
On April 24, 2026, a Linux kernel vulnerability tracked as CVE-2026-31639 was published, revealing a reference count leak in the rxrpc subsystem that can keep authentication keys alive indefinitely...
Microsoft Flags Linux Kernel TIPC Flaw CVE-2026-31662 — Here’s Who’s Actually Affected
Microsoft’s Security Response Center (MSRC) added a new vulnerability to its update guide on Tuesday: CVE-2026-31662. The bug can permanently freeze group broadcasts inside a running Linux kernel,...
Linux Kernel Race Condition in HugeTLB and userfaultfd Triggers System Crashes—Microsoft Tracks CVE-2026-31575
A newly published Linux kernel vulnerability, CVE-2026-31575, allows concurrent page-fault threads to corrupt critical memory reservation data, potentially crashing the system. The flaw stems from a...