cve 2026

About this tag
CVE-2026 vulnerabilities discussed on WindowsForum cover a range of Linux kernel, browser, and Windows platform flaws disclosed in 2026. Topics include Linux kernel bugs in Microsoft's MANA driver, ALSA audio, and Btrfs filesystem, as well as Chromium-based Edge, OpenSC smart card middleware, Vim editor, Windows Push Notification, and Chrome Android Custom Tabs. Recurring themes include the importance of patching driver and storage-layer flaws, the shared Chromium codebase across browsers, and the security implications of developer tooling and mobile browser infrastructure. These threads provide practical guidance for IT administrators and security professionals managing mixed Windows and Linux environments.

  1. CVE-2026-53297: Linux MANA Driver Double Remove NULL Pointer Kernel Panic

    CVE-2026-53297 is a newly published Linux kernel vulnerability disclosed by kernel.org and added to NVD on June 26, 2026, affecting Microsoft’s MANA Ethernet driver when a failed power-management resume path can cause mana_remove() to run twice and dereference a NULL pointer. It is not a...
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    • azure networking cve 2026 linux kernel null pointer dereference
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  2. CVE-2026-53291: Linux Kernel ALSA Conexant Jack Error Check Fix

    CVE-2026-53291 is a newly published Linux kernel vulnerability, added to NVD on June 26, 2026, that fixes a missing error check in the ALSA HDA Conexant audio driver’s jack-detection setup path, where failed callback registration could later trigger a kernel crash. The bug is not a glamorous...
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    • alsa hda cve 2026 linux kernel stability security
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  3. CVE-2026-53284 Btrfs Bug: Transaction Cleanup Fails, Forcing Read-Only

    CVE-2026-53284 is a newly published Linux kernel vulnerability in Btrfs, disclosed in the NVD on June 26, 2026 and modified on June 28, that fixes a transaction writeback bug where dirty metadata tracking could be cleared after failed writes, leaving cleanup code unable to release dirty extent...
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    • btrfs cve 2026 linux kernel storage availability
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  4. CVE-2026-12452: Microsoft Edge (Chromium) Downloads Use-After-Free Patch Guide

    Microsoft documents CVE-2026-12452 in the Security Update Guide because Microsoft Edge is built on Chromium, and the vulnerable Chromium Downloads code was consumed by Edge before Microsoft shipped an Edge update that removed the exposure. This is not Microsoft claiming the original bug was born...
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    • chromium security cve 2026 microsoft edge windows administrators
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  5. CVE-2026-10275 OpenSC pkcs11-tool Buffer Overflow: Smart Card Trust Boundaries

    CVE-2026-10275 is a disclosed OpenSC vulnerability affecting pkcs11-tool in versions up to 0.26.1, where the test_kpgen_certwrite function in src/tools/pkcs11-tool.c can overflow a fixed-size buffer during PKCS#11 key-generation testing when handed an oversized CKA_ID value. The bug is not...

  6. CVE-2026-52858 Vim Python Completion Can Execute Import Code on Untrusted Buffers

    CVE-2026-52858 is a Vim vulnerability published in June 2026 affecting Python omni-completion before Vim 9.2.0561, where invoking completion on a hostile Python buffer can execute attacker-controlled import code with the privileges of the user running the editor. That makes this less a “remote...
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    • cve 2026 python omni-completion vim security windows developer tools
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  7. CVE-2026-42970: Windows Push Notification Info Leak (June 2026 Patch)

    Microsoft disclosed CVE-2026-42970 on June 9, 2026, as a Windows Push Notification information disclosure vulnerability affecting supported Windows client and server releases, with the flaw described as local, authenticated, medium-severity, and rooted in the use of an uninitialized resource...
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    • cve 2026 patch tuesday push notifications windows security
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  8. CVE-2026-11278: Chrome Android Custom Tabs Info Leak—What IT Teams Should Do

    Google Chrome on Android versions before 149.0.7827.53 contained CVE-2026-11278, a Custom Tabs origin-validation flaw disclosed on June 4, 2026, that could let a local attacker leak cross-origin data through a crafted HTML page. That is the plain fact; the more interesting story is what the bug...
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    • browser security chrome android custom tabs cve 2026
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  9. CVE-2026-11167: Chrome Android WebView Sandbox Escape—Why Metadata Matters

    CVE-2026-11167 is a newly published Chrome-for-Android WebView vulnerability, disclosed on June 4, 2026, affecting Google Chrome versions before 149.0.7827.53 and describing a potential sandbox escape after renderer compromise through a crafted HTML page. The awkward part is not just the bug; it...
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    • chrome android cve 2026 vulnerability management webview security
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  10. CVE-2026-11163: Chrome Android Use-After-Free, Sandbox Escape, Patch by 149.0.7827.53

    CVE-2026-11163 is a Chrome on Android use-after-free flaw in the browser’s Messages component, disclosed June 4, 2026, fixed before version 149.0.7827.53, and described as allowing a remote attacker to potentially escape the sandbox through a crafted HTML page. The oddity is not the memory bug...
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    • chrome android cve 2026 sandbox escape use-after-free
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  11. CVE-2026-11148: Chrome on Android Payments Info Leak and CPE Confusion

    CVE-2026-11148 is a medium-severity Chrome for Android payments vulnerability, published June 4, 2026 and modified by NVD on June 8, affecting Google Chrome versions before 149.0.7827.53 on Android and allowing cross-origin data leakage through a crafted HTML page. The awkward part is not the...
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  12. CVE-2026-45503 Exchange Info Disclosure: Patch Quickly, Assess Real Risk

    Microsoft has published CVE-2026-45503 as a Microsoft Exchange Server information disclosure vulnerability in the Security Update Guide, with the public record emphasizing confidence in the vulnerability’s existence and available technical detail rather than a fully disclosed exploit narrative...
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    • cve 2026 information disclosure microsoft exchange vulnerability management
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  13. CVE-2026-45502: Why Microsoft “Confirmed” Report Confidence Matters for Exchange

    Microsoft published CVE-2026-45502 on June 9, 2026, as a Microsoft Exchange Server information disclosure vulnerability in the MSRC Security Update Guide, assigning Microsoft as the CNA and presenting the issue as a confirmed security flaw affecting Exchange administrators’ patch queues. The...
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    • cve 2026 information disclosure microsoft exchange patch management
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  14. CVE-2026-45591: Patch Tuesday ASP.NET Core DoS Fix for .NET 8–10 and VS 2026

    Microsoft published CVE-2026-45591 on June 9, 2026, as an Important-rated ASP.NET Core denial-of-service vulnerability caused by uncontrolled resource consumption and affecting .NET 8.0, .NET 9.0, .NET 10.0, ASP.NET Core 8.0, 9.0, 10.0, and Visual Studio 2026 version 18.6. The exploitability...
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  15. CVE-2026-45642 Attestation Spoofing: What Windows Azure Teams Must Review

    Microsoft’s CVE-2026-45642 is a spoofing vulnerability disclosed for Microsoft Azure Attestation service and Device Health Attestation Service in the June 2026 Security Update Guide, affecting the trust signals Windows and Azure environments use to prove device or platform health. The flaw is...
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    • azure attestation cve 2026 device health attestation zero trust security
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  16. CVE-2026-45486 Word RCE vs CVSS AV:L: Remote Attacker, Local Execution Risk

    Microsoft classifies CVE-2026-45486 as a Microsoft Word Remote Code Execution vulnerability even though its CVSS attack vector is Local because the exploit code runs on the victim’s machine after a malicious document or content path reaches the user, while the attacker may be remote from that...
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    • cve 2026 cvss av l microsoft word security remote code execution
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  17. CVE-2026-46220 AMDGPU Linux: Fix BUG_ON Kernel Panic in SDMA 4.0

    On May 28, 2026, kernel.org assigned CVE-2026-46220 to an AMDGPU flaw in the Linux kernel’s SDMA 4.0 fence-emission path, where crafted unprivileged command submissions could hit BUG_ON() assertions and panic the system. The patch is small, but the lesson is not. This is not the story of an...
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    • amd gpu cve 2026 kernel dos linux kernel security
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  18. CVE-2026-45912 ext4 Stale Extent Status Caching: Space Accounting Fix

    CVE-2026-45912 is a newly published Linux kernel ext4 vulnerability, received by NVD from kernel.org on May 27, 2026, involving stale extent-status caching during extent splitting that can lead to incorrect space accounting. It is not, at least from the public record so far, a...

  19. CVE-2026-46088 ALSA Kernel Panic: The Missing strnlen Guard Explained

    The Linux kernel vulnerability now tracked as CVE-2026-46088 was published by NVD on May 27, 2026, after kernel.org assigned a flaw in ALSA’s control code involving snd_ctl_elem_init_enum_names() and a missing buffer-length guard before a fortified strnlen() call. The bug is not, on current...
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    • alsa audio subsystem cve 2026 kernel hardening linux kernel security
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  20. CVE-2026-45841 Netfilter Bug: CAP_NET_ADMIN Divide-by-Zero Kernel Panic Fix

    Linux kernel maintainers have assigned CVE-2026-45841 to a netfilter flaw, published by NVD on May 27, 2026, in which a privileged CAP_NET_ADMIN user can load a malformed passive OS fingerprint that later causes a divide-by-zero panic when matching TCP SYN traffic. The bug is small, the patch is...
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    • cap_net_admin cve 2026 linux kernel security netfilter
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