Tuesday 13 October 2026

October 2026: is it safe to deploy?

What Microsoft fixed, how urgent it is, and whether anything broke, per Windows version, from Microsoft's release tables, release health, MSRC, CISA, and what the community reports.

← Sep 2026 Nov 2026 →

Superseded

Newer updates replace October 2026.

Microsoft fixed 1474 CVEs, 94 critical and 1 exploited; no open known issues found in the current public evidence; out-of-band fixes followed on 26 Oct. See November 2026 Patch Tuesday.

59 of these CVEs were added after 13 Oct 2026; the release-day timeline keeps the original publication dates.

ChangeIntel's reading of public signals, not advice; check Microsoft's guidance and test before you deploy. Terms

Microsoft CVEs: 1474
Critical: 94
Exploited fixed: 1
In CISA KEV: 1
Open known issues: 0
Out-of-band: 8

Independent patch analysis

Cisco Talos Intelligence

Microsoft Patch Tuesday for October 2026 — Snort rules and prominent vulnerabilities · 13 Oct 2026

2 cycle-level detection references

Snort 2 1:67210 - 1:67273, 1:67276 - 1:67279, 1:67282 - 1:67311, 1:67313 - 1:67316, 1:67319 - 1:67322

Snort 3 1:301663 - 1:301694, 1:301696, 1:301702 - 1:301703, 1:301705 - 1:301706, 1:301709, 1:301711, 1:301717 - 1:301718

193 linked CVEs

CVE-2026-96951 CVE-2026-70229 CVE-2026-70571 CVE-2026-105733 CVE-2026-102214 CVE-2026-108399 CVE-2026-100202 CVE-2026-100209 CVE-2026-100210 CVE-2026-100211 CVE-2026-97739 CVE-2026-97745 CVE-2026-97755 CVE-2026-97759 CVE-2026-97765 CVE-2026-97778 CVE-2026-97741 CVE-2026-97742 CVE-2026-97753 CVE-2026-97756 CVE-2026-97758 CVE-2026-97761 CVE-2026-97767 CVE-2026-97776 CVE-2026-97780 CVE-2026-100215 CVE-2026-100219 CVE-2026-105016 CVE-2026-100220 CVE-2026-102211 CVE-2026-88074 CVE-2026-108130 CVE-2026-108471 CVE-2026-96914 CVE-2026-102225 CVE-2026-97814 CVE-2026-102855 CVE-2026-102856 CVE-2026-102857 CVE-2026-102866 CVE-2026-62840 CVE-2026-69802 CVE-2026-70147 CVE-2026-70153 CVE-2026-108467 CVE-2026-70187 CVE-2026-70250 CVE-2026-83934 CVE-2026-88073 CVE-2026-88117 CVE-2026-88119 CVE-2026-88120 CVE-2026-88171 CVE-2026-96934 CVE-2026-96222 CVE-2026-108131 CVE-2026-96913 CVE-2026-96952 CVE-2026-105718 CVE-2026-108400 CVE-2026-108457 CVE-2026-108460 CVE-2026-70215 CVE-2026-88144 CVE-2026-88178 CVE-2026-88207 CVE-2026-70242 CVE-2026-70291 CVE-2026-88156 CVE-2026-97016 CVE-2026-97749 CVE-2026-70269 CVE-2026-70300 CVE-2026-83917 CVE-2026-94510 CVE-2026-96202 CVE-2026-96943 CVE-2026-96207 CVE-2026-69789 CVE-2026-88174 CVE-2026-88185 CVE-2026-69435 CVE-2026-77900 CVE-2026-83943 CVE-2026-83947 CVE-2026-88131 CVE-2026-100214 CVE-2026-102217 CVE-2026-69673 CVE-2026-69718 CVE-2026-69733 CVE-2026-69783 CVE-2026-69882 CVE-2026-69923 CVE-2026-69926 CVE-2026-70054 CVE-2026-70060 CVE-2026-70076 CVE-2026-70104 CVE-2026-70108 CVE-2026-70117 CVE-2026-70132 CVE-2026-70144 CVE-2026-70156 CVE-2026-70218 CVE-2026-70223 CVE-2026-70233 CVE-2026-70236 CVE-2026-70237 CVE-2026-70241 CVE-2026-70245 CVE-2026-70249 CVE-2026-70253 CVE-2026-70255 CVE-2026-70271 CVE-2026-70273 CVE-2026-70286 CVE-2026-70303 CVE-2026-72955 CVE-2026-81971 CVE-2026-83505 CVE-2026-83509 CVE-2026-83510 CVE-2026-83580 CVE-2026-83669 CVE-2026-83699 CVE-2026-83704 CVE-2026-83717 CVE-2026-83724 CVE-2026-83732 CVE-2026-83735 CVE-2026-83738 CVE-2026-83750 CVE-2026-83761 CVE-2026-83763 CVE-2026-83768 CVE-2026-83769 CVE-2026-83793 CVE-2026-83830 CVE-2026-83834 CVE-2026-83840 CVE-2026-83842 CVE-2026-83848 CVE-2026-83867 CVE-2026-83886 CVE-2026-83896 CVE-2026-83899 CVE-2026-83902 CVE-2026-83921 CVE-2026-84014 CVE-2026-85355 CVE-2026-85791 CVE-2026-85802 CVE-2026-85804 CVE-2026-85832 CVE-2026-85843 CVE-2026-85848 CVE-2026-85849 CVE-2026-85850 CVE-2026-85855 CVE-2026-85870 CVE-2026-85901 CVE-2026-85908 CVE-2026-85941 CVE-2026-85945 CVE-2026-88118 CVE-2026-88133 CVE-2026-88147 CVE-2026-88152 CVE-2026-88159 CVE-2026-88191 CVE-2026-96858 CVE-2026-96911 CVE-2026-96929 CVE-2026-96940 CVE-2026-69452 CVE-2026-69880 CVE-2026-69918 CVE-2026-70103 CVE-2026-70106 CVE-2026-70151 CVE-2026-70176 CVE-2026-70279 CVE-2026-83785 CVE-2026-83927 CVE-2026-85884 CVE-2026-85902 CVE-2026-85906 CVE-2026-88093 CVE-2026-96939 CVE-2026-97798 CVE-2026-97799 CVE-2026-97800

Talos supplies analysis and cycle-level Snort rule references. Its article does not map each rule to a CVE or establish protection for your deployment. MSRC remains the source for vulnerability and fixing-update facts.

What people are saying

News and community

The October 2026 Windows non-security preview update is now available Microsoft 365 Message Center Archive by Merill Fernando

Windowsalso Windows message center

28 Oct 2026

Exchange servers may become unstable after installation of October 2026 Windows updates

Exchange Exchange Team Blogupdated 10 Nov 2026

20 Oct 2026

The October 2026 Windows security update is now available Microsoft 365 Message Center Archive by Merill Fernando

Windowsalso Windows message center

13 Oct 2026

October 2026 Security Updates

Security Microsoft Security Update Guide MSRC release note

13 Oct 2026