kernel vulnerability

A subtle mistake in the SLUB allocator’s handling of kmalloc redzones has been tracked as CVE-2024-49885: a kernel-level bug that can turn defensive memory-initialization into a self-inflicted availability failure. The defect is narrow and surgical in scope — it only appears when SLUB debugging...

Microsoft’s short, product‑scoped attestation — that “Azure Linux includes this open‑source library and is therefore potentially affected” — is accurate and actionable for Azure Linux customers, but it is not a categorical proof that no other Microsoft product can or does include the same...

A subtle driver-state bug in Broadcom’s bnxt Ethernet driver has been assigned CVE-2025-21682 after maintainers fixed a race and a NULL-pointer dereference that can lead to kernel crashes when XDP programs are detached and subsequent reconfiguration occurs. Systems that attach and remove XDP...

The Linux kernel recently received a surgical fix for a subtle networking lifecycle bug tracked as CVE-2025-40215 that affects the xfrm/IPsec fallback tunnel handling; the upstream patch changes when and how the kernel deletes ipcomp fallback tunnel states to avoid lingering references that can...

A kernel-level bug in the Linux XDP socket (XSK) transmit path — tracked as CVE-2023-53240 — allows a local, low-privileged actor to trigger a NULL-pointer dereference and crash the kernel; the fix is a targeted rework of the XSK transmit flow that moves an IFF_UP check earlier and consolidates...

Microsoft has pushed a high-priority November cumulative update for Windows that closes dozens of security holes — including a Windows kernel flaw Microsoft says was being actively exploited in the wild — and users and administrators are being urged to install the patch without delay. Background...

Microsoft has released KB5068781 — the first cumulative security rollup for Windows 10 distributed through the Extended Security Updates (ESU) program — advancing 22H2 systems to Build 19045.6575 and delivering a targeted set of security and servicing fixes for ESU‑enrolled devices. This update...

Microsoft has shipped the November 2025 security rollup and an urgent out‑of‑band (OOB) patch that fixes a bug which prevented some Windows 10 PCs from enrolling in the consumer Extended Security Updates (ESU) program — a release that also closes an actively exploited Windows kernel zero‑day and...

Microsoft released a security update addressing CVE-2025-62215 — a Windows kernel race-condition that can allow a local, authenticated attacker to escalate privileges to SYSTEM — and administrators must treat this as a high-priority local escalation risk, verify patch deployment across affected...

A newly recorded kernel vulnerability tied to the Windows Transport Driver Interface (TDI) translation component — tracked as CVE‑2025‑60720 — has been classified as a high‑severity local elevation‑of‑privilege issue affecting multiple Windows client and server SKUs; vendors and independent...

Microsoft’s Security Update Guide now lists CVE‑2025‑60709 as an Elevation of Privilege vulnerability in the Windows Common Log File System (CLFS) driver, but public technical detail is sparse and the vendor advisory currently provides only a concise listing rather than a full technical...

The Linux kernel received a small but important defensive patch that fixes a NULL-pointer dereference in the PCI endpoint test driver (pci-epf-test) — tracked as CVE-2025-40032 — by adding explicit checks for DMA channel pointers before they are released, closing a path that could cause kernel...

Microsoft has added CVE-2025-59192 to its October security rollup: a buffer over‑read in the Storport.sys Windows storage driver that Microsoft says can be abused by a locally authorized attacker to gain elevated privileges, and administrators should treat the published update as an urgent...

A newly recorded Windows kernel vulnerability, tracked as CVE-2025-55696, is a time‑of‑check/time‑of‑use (TOCTOU) race in the NtQueryInformationToken implementation (ntifs.h) that can allow a local attacker to elevate privileges to SYSTEM when exploited; Microsoft has published the entry in its...

Microsoft has recorded an elevation-of-privilege vulnerability in the Windows Cloud Files Mini Filter Driver (cldflt.sys) that permits a local actor to obtain sensitive kernel-level information and, in some attack chains, progress to SYSTEM privileges—an urgent issue for shared desktops, VDI...

Microsoft’s advisory for CVE-2025-50152 documents an out‑of‑bounds read in the Windows kernel that may allow an authorized local attacker to elevate privileges to SYSTEM; independent vulnerability trackers list the flaw with a CVSS v3.1 base score of 7.8 (High) and, until vendor KB mappings are...

Microsoft has recorded CVE-2025-55683 as a Windows Kernel information‑disclosure vulnerability and released security updates; administrators should treat this as a priority patch for any hosts that allow untrusted local code or multi‑user access. Background / Overview Microsoft’s public entry...

Microsoft has published an advisory and a security update for CVE-2025-55679, a Windows Kernel information‑disclosure vulnerability that permits a local actor to obtain sensitive system memory under certain conditions — and administrators should treat it as a high-priority remediation for...

Microsoft’s SharePoint on‑premises ecosystem is at the center of a high‑urgency security crisis: a cluster of remote code execution (RCE) and authentication‑bypass issues — widely tracked under CVE identifiers such as CVE‑2025‑49704, CVE‑2025‑49706 and the emergent “ToolShell” chain...

Microsoft’s security advisory confirms a use‑after‑free defect in the BitLocker stack that can be triggered by an authorized local user to escalate privileges on affected Windows systems — administrators must treat CVE‑2025‑54912 as an urgent patching priority and assume a high‑impact threat...