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.
Total records
16,212
Critical
1,207
High
5,399
Medium
5,736
Low
600
Severity not reported
3,270
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)
| CVE | Severity | CVSS | KEV | Vendor / product | Published | Modified |
|---|---|---|---|---|---|---|
| CVE-2026-85340 Use after free in Microsoft Office Click-To-Run allows an authorized attacker to... |
high | 7.8 | — | Microsoft / 365 apps | 2026-10-13 | 2026-10-15 |
| CVE-2026-85329 Concurrent execution using shared resource with improper synchronization ('race... |
high | 7.0 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-16 |
| CVE-2026-85332 Use after free in Windows Device Association Service allows an authorized attack... |
high | 7.8 | — | Microsoft / windows 10 1809 | 2026-10-13 | 2026-10-16 |
| CVE-2026-85333 Concurrent execution using shared resource with improper synchronization ('race... |
high | 7.0 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-16 |
| CVE-2026-85327 Heap-based buffer overflow in Windows Print Spooler Components allows an authori... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-16 |
| CVE-2026-85328 Weak authentication in Windows Projected File System allows an authorized attack... |
high | 7.0 | — | Microsoft / windows 10 1809 | 2026-10-13 | 2026-10-16 |
| CVE-2026-85322 Use of uninitialized resource in Windows Routing and Remote Access Service (RRAS... |
high | 7.5 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-16 |
| CVE-2026-85324 Memory allocation with excessive size value in Active Directory Federation Servi... |
high | 7.5 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-16 |
| CVE-2026-84017 Null pointer dereference in Windows Routing and Remote Access Service (RRAS) all... |
high | 7.5 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-19 |
| CVE-2026-84018 Use after free in Windows Print Spooler Components allows an authorized attacker... |
high | 7.0 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-19 |
| CVE-2026-84019 Use after free in Windows Advanced Rasterization Platform allows an authorized a... |
high | 7.0 | — | Microsoft / windows 10 1809 | 2026-10-13 | 2026-10-19 |
| CVE-2026-84020 Use after free in Windows Routing and Remote Access Service (RRAS) allows an aut... |
high | 7.0 | — | Microsoft / windows 10 21h2 | 2026-10-13 | 2026-10-19 |
| CVE-2026-84012 Double free in Remote Desktop Gateway Service allows an unauthorized attacker to... |
high | 8.1 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-19 |
| CVE-2026-84013 Use after free in Windows Telephony Server allows an authorized attacker to elev... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-19 |
| CVE-2026-84014 Heap-based buffer overflow in Windows Device Association Service allows an autho... |
high | 7.0 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-19 |
| CVE-2026-84016 Out-of-bounds write in Windows EAPHost Service allows an authorized attacker to... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-19 |
| CVE-2026-83934 Stack-based buffer overflow in Windows GDI+ allows an unauthorized attacker to e... |
high | 8.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-19 |
| CVE-2026-83927 Improper link resolution before file access ('link following') in Windows Regist... |
high | 7.8 | — | Microsoft / windows 10 21h2 | 2026-10-13 | 2026-10-26 |
| CVE-2026-83928 Out-of-bounds write in Windows Local Security Authority Subsystem Service (LSASS... |
high | 8.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-26 |
| CVE-2026-83929 Out-of-bounds write in Windows GDI allows an unauthorized attacker to execute co... |
high | 8.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-26 |
| CVE-2026-83930 Use after free in Windows Update Orchestrator Service allows an authorized attac... |
high | 7.0 | — | Microsoft / windows 11 23h2 | 2026-10-13 | 2026-10-26 |
| CVE-2026-83931 Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to e... |
high | 7.8 | — | Microsoft / windows 11 23h2 | 2026-10-13 | 2026-10-26 |
| CVE-2026-83932 Heap-based buffer overflow in Windows Group Policy allows an authorized attacker... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-26 |
| CVE-2026-83924 Use after free in Windows Kernel allows an authorized attacker to elevate privil... |
high | 7.0 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-26 |
| CVE-2026-83900 Use after free in Windows Bind Filter Driver allows an authorized attacker to el... |
high | 7.0 | — | Microsoft / windows 11 23h2 | 2026-10-13 | 2026-10-21 |
| CVE-2026-83899 Improper privilege management in Windows Installer allows an authorized attacker... |
high | 7.0 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-21 |
| CVE-2026-83896 Heap-based buffer overflow in Windows Direct Composition allows an authorized at... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-21 |
| CVE-2026-83891 Stack-based buffer overflow in Microsoft Office Word allows an unauthorized atta... |
high | 8.8 | — | Microsoft / 365 apps | 2026-10-13 | 2026-10-15 |
| CVE-2026-83886 Use after free in Windows Update Orchestrator Service allows an authorized attac... |
high | 7.0 | — | Microsoft / windows 11 23h2 | 2026-10-13 | 2026-10-21 |
| CVE-2026-83889 Release of invalid pointer or reference in DNS Server allows an authorized attac... |
high | 8.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-16 |
| CVE-2026-83876 Use after free in Windows Shell allows an authorized attacker to elevate privile... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-21 |
| CVE-2026-83879 Concurrent execution using shared resource with improper synchronization ('race... |
high | 7.0 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-21 |
| CVE-2026-83881 Heap-based buffer overflow in Windows exFAT File System allows an authorized att... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-21 |
| CVE-2026-83882 Heap-based buffer overflow in Windows Kernel allows an authorized attacker to el... |
high | 7.8 | — | Microsoft / windows 10 1809 | 2026-10-13 | 2026-10-21 |
| CVE-2026-83883 Use after free in Windows Win32K allows an authorized attacker to elevate privil... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-21 |
| CVE-2026-83872 Incorrect conversion between numeric types in Windows TCP/IP allows an authorize... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-21 |
| CVE-2026-83873 Relative path traversal in Windows Shell allows an authorized attacker to elevat... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-21 |
| CVE-2026-83874 Heap-based buffer overflow in Windows Event Tracing allows an unauthorized attac... |
high | 8.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-21 |
| CVE-2026-83866 Use after free in Windows Win32K allows an authorized attacker to elevate privil... |
high | 7.0 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-21 |
| CVE-2026-83867 Heap-based buffer overflow in Windows Push Notifications allows an authorized at... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-21 |
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.