Severity: ElevatedAction: Patch

Microsoft releases Windows 10 KB5126657 extended security update

Microsoft released the Windows 10 KB5126657 extended security update, which includes this month's record-breaking October 2026 Patch Tuesday fixes and a few bug fixes and changes.

Excerpt from the primary source: BleepingComputer

Who is affected

Home users · Small businesses · Enterprises

Affected technology: Windows

What you should do · Patch

Apply the vendor's security update for Windows. Check the linked advisory for affected and fixed versions, and put internet-facing systems first.

Automated guidance based on this story's classification. Check the linked advisories for specifics.

Sources

We link to original and authoritative sources. Headlines and excerpts belong to their publishers.

Original reporting

Microsoft releases Windows 10 KB5126657 extended security update BleepingComputer · bleepingcomputer.com · Oct 13, 2026 · Primary source
Severity: ElevatedAction: Be aware

Windows 11 KB5127648 & KB5126653 cumulative updates released

Microsoft has released Windows 11 KB5127648 and KB5126653 cumulative updates for versions 26H2/25H2/24H2 and 23H2 to fix security vulnerabilities and bugs and add new features.

Severity: ElevatedAction: Be aware

The MFA Gaps Attackers are Still Exploiting

Attackers continue exploiting gaps in MFA coverage, using stolen credentials to access VPNs, RDP, and Windows systems that still rely on passwords alone. Specops explains why protecting cloud applications isn't enough and how organizations can close these authentication gaps.

Severity: CriticalAction: Act nowExploitation: ExploitedCISA KEV

Ivanti Connect Secure Authentication Bypass by Spoofing Vulnerability (CVE-2026-104935) is being actively exploited, CISA warns

CISA added CVE-2026-104935 (Ivanti Connect Secure) to its Known Exploited Vulnerabilities catalog on October 13, 2026, which means there is reliable evidence of exploitation in the wild. Ivanti Connect Secure contains an authentication bypass by spoofing vulnerability that allows a remote unauthenticated attacker to execute arbitrary commands.

Why it matters

CISA lists this as exploited in the wild. Unpatched Ivanti Connect Secure / EPMM and Windows systems are exposed to active attacks now.

Act now

Treat this as an emergency.

Severity: HighAction: PatchExploitation: ExploitedCISA KEV

Microsoft Windows Command Injection Vulnerability (CVE-2026-96951) is being actively exploited, CISA warns

CISA added CVE-2026-96951 (Microsoft Windows) to its Known Exploited Vulnerabilities catalog on October 13, 2026, which means there is reliable evidence of exploitation in the wild. Microsoft Windows Shell contains a command injection vulnerability that allows an unauthorized attacker to bypass a security feature over a network.

Why it matters

CISA lists this as exploited in the wild. Unpatched Windows and Windows systems are exposed to active attacks now.

Patch

Apply the vendor's security update for Windows and Windows.