security advisory

Microsoft disclosed CVE-2026-42904 on June 9, 2026, as an Important Windows TCP/IP elevation-of-privilege vulnerability caused by a heap-based buffer overflow that can let an unauthenticated attacker with adjacent-network access gain SYSTEM privileges on affected Windows clients and servers. The...

Microsoft has listed CVE-2026-47641 as a Microsoft SharePoint Server spoofing vulnerability in its Security Update Guide on June 9, 2026, giving administrators another Patch Tuesday item to triage across on-premises SharePoint farms, especially environments still running SharePoint Server 2016...

Microsoft has listed CVE-2026-47637 as a Microsoft SharePoint Server spoofing vulnerability in its Security Update Guide, with the advisory source indicating that the issue concerns confidence in the vulnerability’s existence and the credibility of currently public technical details. That makes...

Microsoft’s CVE-2026-45460 advisory says the security updates for Microsoft Office LTSC for Mac 2021, Office LTSC for Mac 2024, and Microsoft 365 for Mac are not immediately available as of June 9, 2026, and will be released later through a CVE revision. That is the practical answer for Mac...

Microsoft has published a new security advisory for CVE-2026-32195, described as a Windows Kernel Elevation of Privilege Vulnerability. The available public record is still sparse, but the issue is already notable because Microsoft’s update guide has assigned it a formal CVE, which usually means...

Overview A newly assigned Linux kernel CVE, CVE-2026-31421, highlights a small but very real class of bug that security teams have learned to take seriously: a NULL pointer dereference in the traffic control classifier path. The flaw sits in net/sched/cls_fw, the classic firewall-style...

Microsoft’s advisory for CVE-2026-23286 points to a null-pointer dereference in the ATM LEC code path, specifically in lec_arp_clear_vccs, which is the kind of bug that can turn an otherwise routine networking cleanup path into a kernel crash. The short description implies a defensive fix rather...

Btrfs has spent years living with a reputation that is equal parts innovation and caution: it is the Linux filesystem that promises copy-on-write flexibility, checksums, snapshots, and multi-device features, while also carrying the burden of every subtle accounting bug that can emerge when a...

Microsoft Flags Chromium CVEs in Edge Security Updates by treating Edge as both a browser product and a delivery vehicle for upstream Chromium fixes. In practice, that means a Chromium vulnerability can appear in Microsoft’s Security Update Guide as a CVE entry tied to Edge, while the Edge...

A newly disclosed vulnerability in the ubiquitous Node.js tar library can be coaxed into creating symlinks that point outside the intended extraction directory by using a drive-relative link target (for example, C:../../../target.txt), enabling an attacker-supplied archive to overwrite files...

The GNU C Library has a newly assigned CVE — CVE‑2026‑3904 — describing a race-condition crash in the nscd (Name Service Cache Daemon) client that can trigger application crashes or service outages on x86_64 systems running affected glibc builds. Upstream maintainers published a security...

A subtle but important Linux kernel race condition in the espintcp TCP‑encapsulation code has been assigned CVE‑2026‑23239 and quietly landed fixes across the kernel trees: the patch replaces a cancel_work_sync() call with disable_work_sync() in espintcp_close() to prevent a worker from touching...

A newly disclosed vulnerability in Vim’s built‑in file‑browser plugin, netrw, can be used to inject and execute shell commands when a user opens a specially crafted remote URL (for example, using the scp:// protocol). The bug, tracked as CVE‑2026‑28417, affects Vim releases prior to 9.2.0073 and...

A dodgy race in the Linux kernel’s virtio crypto path has been fixed by adding spinlock protection around virtqueue notification handling — a surgical change that closes a denial‑of‑service and hang condition seen when the virtio‑crypto device and the AF_ALG backend are exercised concurrently...

A small, two-byte mistake in a Linux Wi‑Fi driver has quietly become a reminder that even trivial-looking changes in kernel code can carry outsized risk: CVE-2025-38159 is an out‑of‑bounds read in the Realtek rtw88 Wi‑Fi driver that was introduced years ago, affects a broad set of devices...

A deceptively small bug in the Linux kernel’s virtual Wi‑Fi driver — tracked as CVE‑2024‑43841 — has prompted an important question from customers: when Microsoft’s update guide states that “Azure Linux includes this open‑source library and is therefore potentially affected,” does that mean...

Curve.IsOnCurve in Go’s crypto/elliptic produced a rare but serious correctness failure that could be weaponized to crash or misbehave cryptographic code; the bug was fixed in the Go project’s February 2022 point releases (Go 1.16.14 and Go 1.17.7), and maintainers and downstream vendors issued...

A subtle bug in a widely used Go PostgreSQL driver has opened the door to SQL injection under a narrow—but realistic—set of conditions, and the fix requires immediate attention from any team that embeds the pgx library. The vulnerability, tracked as CVE-2024-27289, allows user-controlled input...

A small assertion bug in the open‑source libnbd client library (tracked as CVE‑2021‑20286) can cause a denial‑of‑service; Microsoft’s public advisory names Azure Linux as a product that “includes this open‑source library and is therefore potentially affected,” but that statement is a scoped...

Microsoft’s short advisory that “Azure Linux includes this open‑source library and is therefore potentially affected” is accurate — but it is a scoped, product‑level attestation, not a technical guarantee that no other Microsoft product can contain the same vulnerable GNU Binutils code...