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October 2026 CVE archive

Records published in NIST NVD between Oct 1 and Oct 29, 2026 (UTC). Data imported from the NVD CVE API 2.0 and the CISA KEV catalog; each record shows its own source and verification time.

Published in October 2026Materially updated (Critical / KEV)
Total records
16,209
Critical
1,207
High
5,399
Medium
5,736
Low
600
Severity not reported
3,267
In CISA KEV
17

Most affected vendors (by CPE data where available): microsoft (1078), google (711), ibm (140), oracle (117), adobe (110), broadcom (61), apache (45), freerdp (42), linuxfoundation (41), dell (40)

CVESeverityCVSSKEVVendor / productPublishedModified
CVE-2026-87699
Heap-based buffer overflow in Winlogon allows an authorized attacker to elevate...
high 7.8 —Microsoft / windows 10 1607 2026-10-132026-10-27
CVE-2026-87700
Use after free in Windows Installer allows an authorized attacker to elevate pri...
high 7.8 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-85945
Use after free in Windows Kernel allows an authorized attacker to elevate privil...
high 7.8 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-87691
Use after free in Windows Management Services allows an authorized attacker to e...
high 7.8 —Microsoft / windows 11 23h2 2026-10-132026-10-28
CVE-2026-87693
Use after free in Windows Installer allows an authorized attacker to elevate pri...
high 7.0 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-87694
Use after free in Windows Installer allows an authorized attacker to elevate pri...
high 7.8 —Microsoft / windows 10 1607 2026-10-132026-10-27
CVE-2026-85936
Double free in Windows Shell allows an unauthorized attacker to execute code ove...
high 8.8 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-85941
Concurrent execution using shared resource with improper synchronization ('race...
high 7.0 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-85930
Use after free in Windows Image Acquisition allows an authorized attacker to ele...
high 7.0 —Microsoft / windows 10 21h2 2026-10-132026-10-28
CVE-2026-85931
Heap-based buffer overflow in Windows Distributed File System (DFS) allows an au...
high 8.8 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-85933
Use after free in Windows Print Spooler Components allows an authorized attacker...
high 7.8 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-85934
Use after free in Windows AppX Deployment Service allows an authorized attacker...
high 7.0 —Microsoft / windows 10 1809 2026-10-132026-10-28
CVE-2026-85920
Time-of-check time-of-use (toctou) race condition in Windows BitLocker allows an...
high 7.0 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-85922
Weak authentication in Azure Key Vault allows an unauthorized attacker to bypass...
high 7.4 —Microsoft / azure-keyvault-administration 2026-10-132026-10-16
CVE-2026-85925
Improper restriction of communication channel to intended endpoints in Azure Key...
high 8.2 —Microsoft / azure-keyvault-administration 2026-10-132026-10-16
CVE-2026-85926
Use after free in Windows Secure Socket Tunneling Protocol (SSTP) allows an unau...
high 8.1 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-85927
Heap-based buffer overflow in Windows Universal Plug and Play (UPnP) Device Host...
high 7.8 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-85911
Use after free in Windows StateRepository API allows an authorized attacker to e...
high 7.8 —Microsoft / windows 10 1809 2026-10-132026-10-26
CVE-2026-85912
Concurrent execution using shared resource with improper synchronization ('race...
high 7.0 —Microsoft / windows 10 1607 2026-10-132026-10-26
CVE-2026-85914
Use after free in Windows Embedded Mode Service allows an authorized attacker to...
high 7.0 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-85915
Heap-based buffer overflow in Windows PCI Bus Driver allows an authorized attack...
high 7.8 —Microsoft / windows 10 1809 2026-10-132026-10-16
CVE-2026-85918
Use after free in Windows Universal Plug and Play (UPnP) Device Host allows an a...
high 7.0 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-85903
Untrusted pointer dereference in DNS Server allows an unauthorized attacker to e...
high 8.8 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-85904
Concurrent execution using shared resource with improper synchronization ('race...
high 7.0 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-85905
Heap-based buffer overflow in Windows UI Immersive Server allows an authorized a...
high 8.8 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-85906
Use after free in Windows Direct Composition allows an authorized attacker to el...
high 7.8 —Microsoft / windows 10 21h2 2026-10-132026-10-28
CVE-2026-85908
Heap-based buffer overflow in Windows Win32K - GRFX allows an authorized attacke...
high 7.8 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-85900
Deserialization of untrusted data in Microsoft Office SharePoint allows an autho...
high 8.8 —Microsoft / sharepoint server 2026-10-132026-10-14
CVE-2026-85901
Heap-based buffer overflow in Windows Win32K - GRFX allows an authorized attacke...
high 7.8 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-85902
Heap-based buffer overflow in Windows Direct Composition allows an authorized at...
high 7.8 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-85836
Use after free in Windows Kernel allows an authorized attacker to elevate privil...
high 7.8 —Microsoft / windows 11 24h2 2026-10-132026-10-16
CVE-2026-85837
Out-of-bounds read in Windows Kernel allows an authorized attacker to elevate pr...
high 7.8 —Microsoft / windows 11 24h2 2026-10-132026-10-16
CVE-2026-85822
Heap-based buffer overflow in Windows exFAT File System allows an authorized att...
high 7.8 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-85823
Use after free in Windows Composite Image File System allows an authorized attac...
high 7.0 —Microsoft / windows 11 24h2 2026-10-132026-10-16
CVE-2026-85824
Use after free in Windows Composite Image File System allows an authorized attac...
high 7.0 —Microsoft / windows 10 21h2 2026-10-132026-10-16
CVE-2026-85825
Use after free in Windows Universal Disk Format File System Driver (UDFS) allows...
high 7.0 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-85826
Out-of-bounds write in Windows Fast FAT Driver allows an authorized attacker to...
high 7.0 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-85817
Reliance on untrusted inputs in a security decision in Windows PowerShell allows...
high 8.8 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-85820
Use after free in Windows Universal Disk Format File System Driver (UDFS) allows...
high 7.8 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-85808
Out-of-bounds read in Windows Routing and Remote Access Service (RRAS) allows an...
high 7.5 —Microsoft / windows 10 1607 2026-10-132026-10-16

Sources: NIST NVD (CVE API 2.0) and the CISA KEV catalog. Severity is as stated by the source; missing values are shown as “not reported”, never estimated.