RECENTRELEASE SUMMARY · 2,134 CVEsVulnerability
October 2026 Security Updates
2134 Microsoft CVEs in the 2026-Oct security release.
- Published
- 13 Oct 2026, 12:30 PM IST
- Updated
- 18 Oct 2026, 08:13 PM IST
- Source
- Microsoft Security Update Guide · Limited verification
- Classification
- Microsoft Security
Section 01 · Source release summary
2134 Microsoft CVEs in the 2026-Oct security release.
Compiled from the vendor release document. Check each CVE's primary evidence for individual scope and dates.
Products named in this release
Listed from the release summary. Which product a given CVE affects is shown on that CVE's own record.
Productsazl3 dpdk 23.11.3-1 on Azure Linux 3.0, azl3 httpd 2.4.68-1 on Azure Linux 3.0, azl3 javapackages-bootstrap 1.14.0-4 on Azure Linux 3.0, azl3 opensc 0.27.1-2 on Azure Linux 3.0, azl3 erlang 26.2.5.21-6 on Azure Linux 3.0, azl3 cups 2.4.19-1 on Azure Linux 3.0, azl3 gnupg2 2.4.9-3 on Azure Linux 3.0, azl3 hdf5 1.14.6-4 on Azure Linux 3.0, azl3 openssh 9.8p1-10 on Azure Linux 3.0, azl3 cyrus-sasl 2.1.28-8 on Azure Linux 3.0, azl3 cyrus-sasl-bootstrap 2.1.28-8 on Azure Linux 3.0, azl3 kata-containers 4.1.0.kata0-1 on Azure Linux 3.0
KBs / artifactsKB5126653, KB5127648, KB5126646, KB5127646, KB5126651, KB5126657, KB5126655, KB5126835, KB5126836, KB5126868, KB5002928, KB5002927, KB5127666, KB5127685, KB5127683, KB5127687, KB5127667, KB5127668, KB5127684, KB5127686, KB5127688, KB5127689, KB5127690, KB5127691, KB5127692, KB5127693, KB5127694, KB5130034, KB5130035, KB5130036, KB5127696, KB5127660, KB5127664, KB5099538, KB5099540, KB5099539, KB5099536, KB5101650, KB5099414, KB5101649, KB5099535, KB5099445, KB5099444, KB5126934, KB5126967, KB5128495, KB5128493, KB5128492, KB5128494, KB5128496, KB5128497, KB5122876, KB5122882, KB5122878, KB5122871, KB5124008, KB5122880, KB5124012, KB5123099, KB5123065, KB5123066, KB5126649, KB5127357, KB5127356, KB5128896, KB5128897, KB5128898, KB5128895, KB5131692, KB5132779, KB5131693, KB5129957, KB5129958, KB5129955, KB5129956