September Microsoft Patch Tuesday

September Microsoft Patch Tuesday. A total of 973 vulnerabilities were addressed - more than twice as many as in August. Seven products had 20 or more vulnerabilities fixed: Windows Biometric Service 64, Microsoft SQL Server 54, Windows DHCP Server 36, Microsoft Office Word 35, Windows NTFS 29,...

Microsoft Patches Record 974 Flaws, Including Two Exploited Windows Zero-Days

Microsoft on Tuesday broke Patch Tuesday records by addressing an earth-shattering 974 vulnerabilities spanning its software portfolio, including two flaws that it said have been actively exploited in the wild. These include 723 flaws in Windows, 111 in Office and Office 2016, 62 in SQL, and 22 i...

Windows Update Stack Privilege Escalation

The vulnerability of the Windows Update Stack component in Windows operating systems is related to an incorrect definition of the link before accessing the file. Exploiting this vulnerability can allow an attacker to increase their privileges...

Microsoft Patch Tuesday for September 2026 — Snort rules and prominent vulnerabilities

Microsoft has released its monthly security update for September 2026, which includes 973 vulnerabilities affecting a range of products, including 113 that Microsoft marked as "critical." Microsoft notes that 2 of the vulnerabilities disclosed this month have been exploited in the wild:...

Patch Tuesday - September 2026

Microsoft is publishing 974 own-product vulnerabilities on September 2026 Patch Tuesday, including 723 vulnerabilities in Windows. Along with Microsoft fixes for 25 non-Microsoft CVEs, that brings the total number of vulnerabilities on the table today to 999. Whether this is the biggest Patch...

CVE-2026-81963

Improper link resolution before file access 'link following' in Windows Update Stack allows an authorized attacker to elevate privileges locally...

EUVD-2026-73889

Improper link resolution before file access 'link following' in Windows Update Stack allows an authorized attacker to elevate privileges locally...

CVE-2026-81963

Windows Update Stack is affected by an improper link resolution before file access ('link following') flaw that allows an authorized attacker with low privileges to elevate privileges locally , rated CVSS 7.8 HIGH with high impact to confidentiality, integrity, and availability. The vulnerability...

Windows Update Stack Elevation of Privilege Vulnerability

Improper link resolution before file access 'link following' in Windows Update Stack allows an authorized attacker to elevate privileges locally...

PT-2026-88102

Name of the Vulnerable Software and Affected Versions Windows Update Stack affected versions not specified Description An improper link resolution before file access, known as link following, occurs within the Windows Update Stack. This issue allows an authorized attacker to elevate their...

Microsoft Windows Link Following Vulnerability

Microsoft Windows Update Stack contains a link following vulnerability that allows a local attacker to escalate privileges locally up to SYSTEM...

CVE-2026-81963: Improper Link Resolution Before File Access

Improper link resolution before file access 'link following' in Windows Update Stack allows an authorized attacker to elevate privileges locally...

VulnCheck KEV: CVE-2026-81963

Microsoft Windows Update Stack contains a link following vulnerability that allows a local attacker to escalate privileges locally up to SYSTEM...

Four REVSTEALER-Linked Modules Disable Windows Update and Defender to Run a Crypto Miner

Elastic Security Labs has documented four previously unreported programs associated with REVSTEALER, an emerging Windows information stealer, that remain on an infected machine after the stealer deletes itself. One of them switches off Windows Update and Microsoft Defender before running a...

Fake Software Installers Disable Windows Update and Weaken Microsoft Defender

An active malware campaign is using bogus software-download websites to impersonate trusted vendors and distribute malicious installers. "The campaign has targeted users looking to download popular software and has resulted in compromises across multiple organizations and industries, primarily...

August 11, 2026—KB5121000 (OS Build 28000.2704)

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KLA91191 PE vulnerability in Microsoft Device

Privilege escalation vulnerability was found in Microsoft Device. Malicious users can exploit this vulnerability to gain privileges. Original advisories CVE-2026-63508 Exploitation Related products Microsoft-Planetary-Computer-Pro CVE list CVE-2026-63508 unknown KB list Solution Install necessary...

Important: Red Hat Security Advisory: OpenJDK 8u502 Windows Security Update

An update is now available for OpenJDK. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE links in the References...

KLA91178 SUI vulnerability in Microsoft Server Software

User interface spoofing vulnerability was found in Microsoft Server Software. Malicious users can exploit this vulnerability to spoof user interface. Original advisories CVE-2026-56191 Exploitation CVE list CVE-2026-56191 critical KB list Solution Install necessary updates from the KB section, th...

KLA91174 ACE vulnerability in Microsoft Apps

Arbitrary code execution vulnerability was found in Microsoft Apps. Malicious users can exploit this vulnerability to execute arbitrary code. Original advisories CVE-2026-50517 Exploitation CVE list CVE-2026-50517 critical KB list Solution Install necessary updates from the KB section, that are...