Patch Tuesday - February 2026

Microsoft is publishing 55 vulnerabilities this February 2026 Patch Tuesday. Microsoft is aware of exploitation in the wild for six of today’s vulnerabilities, and notes public disclosure for three of those. Earlier in the month, Microsoft provided patches to address three browser vulnerabilities...

Microsoft Windows Notepad < 11.2510 Command Injection (February 2026)

The Windows 'Microsoft Windows Notepad' app installed on the remote host is prior to version 11.2510. It is, therefore, affected by a command injection vulnerability: - Improper neutralization of special elements used in a command allows an unauthorized attacker to execute code over a network...

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

Microsoft has released its monthly security update for February 2026, which includes 59 vulnerabilities affecting a range of products, including two that Microsoft marked as "Critical". CVE-2026-21522 is a critical elevation of privilege vulnerability affecting Microsoft ACI Confidential...

Patch Tuesday, February 2026 Edition

Microsoft today released updates to fix more than 50 security holes in its Windows operating systems and other software, including patches for a whopping six "zero-day" vulnerabilities that attackers are already exploiting in the wild. Zero-day 1 this month is CVE-2026-21510, a security feature...

Microsoft and Adobe Patch Tuesday, February 2026 Security Update Review

Microsoft's February 2026 Patch Tuesday focuses on closing security gaps that attackers could exploit, reinforcing the importance of timely patching in enterprise environments. Here's a quick breakdown of what you need to know. Microsoft Patch Tuesday for February 2026 This month's release...

2026-02 Cumulative Update for Windows Server 2019 for x64-based Systems (KB5075904)

2026-02 Cumulative Update for Windows Server 2019 for x64-based Systems KB5075904...

2026-02 Cumulative Update for Windows 10 Version 21H2 for x64-based Systems (KB5075912)

2026-02 Cumulative Update for Windows 10 Version 21H2 for x64-based Systems KB5075912...

2026-02 Cumulative Update for Windows 10 Version 1809 for x64-based Systems (KB5075904)

2026-02 Cumulative Update for Windows 10 Version 1809 for x64-based Systems KB5075904...

CVE-2026-23655

creationtimestamp| type| source ---|---|--- 2026-02-10 17:30:28+00:00| seen| https://www.thezdi.com/blog/2026/2/10/the-february-2026-security-update-review 2026-02-10 18:08:27+00:00| seen| https://advisories.ncsc.nl/advisory?id=NCSC-2026-0057 2026-02-13 04:55:22+00:00| seen|...

CVE-2026-21518

creationtimestamp| type| source ---|---|--- 2026-02-10 17:30:28+00:00| seen| https://www.thezdi.com/blog/2026/2/10/the-february-2026-security-update-review 2026-02-10 18:07:16+00:00| seen| https://advisories.ncsc.nl/advisory?id=NCSC-2026-0056 2026-02-13 04:55:24+00:00| seen|...

CVE-2026-21508

creationtimestamp| type| source ---|---|--- 2026-02-10 17:30:28+00:00| seen| https://www.thezdi.com/blog/2026/2/10/the-february-2026-security-update-review 2026-02-10 18:01:45+00:00| seen| https://advisories.ncsc.nl/advisory?id=NCSC-2026-0053 2026-02-13 04:55:25+00:00| seen|...

CVE-2026-21235

creationtimestamp| type| source ---|---|--- 2026-02-10 17:30:28+00:00| seen| https://www.thezdi.com/blog/2026/2/10/the-february-2026-security-update-review 2026-02-10 18:01:45+00:00| seen| https://advisories.ncsc.nl/advisory?id=NCSC-2026-0053 2026-02-12 05:00:00+00:00| seen|...

CVE-2026-20841

creationtimestamp| type| source ---|---|--- 2026-02-10 17:30:28+00:00| seen| https://www.thezdi.com/blog/2026/2/10/the-february-2026-security-update-review 2026-02-10 21:22:36+00:00| seen| https://bsky.app/profile/timb-machine.infosec.exchange.ap.brid.gy/post/3mejvh7k4x3p2 2026-02-10...

CVE-2026-21529

creationtimestamp| type| source ---|---|--- 2026-02-10 17:30:28+00:00| seen| https://www.thezdi.com/blog/2026/2/10/the-february-2026-security-update-review 2026-02-10 18:08:27+00:00| seen| https://advisories.ncsc.nl/advisory?id=NCSC-2026-0057 2026-02-11 13:50:11+00:00| seen|...

CVE-2026-21241

creationtimestamp| type| source ---|---|--- 2026-02-10 17:30:28+00:00| seen| https://www.thezdi.com/blog/2026/2/10/the-february-2026-security-update-review 2026-02-10 18:01:45+00:00| seen| https://advisories.ncsc.nl/advisory?id=NCSC-2026-0053 2026-02-24 18:35:07+00:00| seen|...

CVE-2026-21240

creationtimestamp| type| source ---|---|--- 2026-02-10 17:30:28+00:00| seen| https://www.thezdi.com/blog/2026/2/10/the-february-2026-security-update-review 2026-02-10 18:01:45+00:00| seen| https://advisories.ncsc.nl/advisory?id=NCSC-2026-0053...

CVE-2026-21238

creationtimestamp| type| source ---|---|--- 2026-02-10 17:30:28+00:00| seen| https://www.thezdi.com/blog/2026/2/10/the-february-2026-security-update-review 2026-02-10 18:01:45+00:00| seen| https://advisories.ncsc.nl/advisory?id=NCSC-2026-0053...

CVE-2026-21243

creationtimestamp| type| source ---|---|--- 2026-02-10 17:30:28+00:00| seen| https://www.thezdi.com/blog/2026/2/10/the-february-2026-security-update-review 2026-02-10 18:01:45+00:00| seen| https://advisories.ncsc.nl/advisory?id=NCSC-2026-0053...

CVE-2026-21517

creationtimestamp| type| source ---|---|--- 2026-02-10 17:30:28+00:00| seen| https://www.thezdi.com/blog/2026/2/10/the-february-2026-security-update-review 2026-02-10 18:01:45+00:00| seen| https://advisories.ncsc.nl/advisory?id=NCSC-2026-0053 2026-02-13 04:55:24+00:00| seen|...

CVE-2026-21259

creationtimestamp| type| source ---|---|--- 2026-02-10 17:30:28+00:00| seen| https://www.thezdi.com/blog/2026/2/10/the-february-2026-security-update-review 2026-02-10 18:11:42+00:00| seen| https://advisories.ncsc.nl/advisory?id=NCSC-2026-0058 2026-02-11 13:50:25+00:00| seen|...