October 2026 CVE archive
Records last modified in NIST NVD between Oct 1 and Oct 31, 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. The modified view only includes records that were CRITICAL or CISA-KEV-listed when imported — it is not a complete list of every modification.
Total records
21,937
Critical
3,121
High
7,064
Medium
6,901
Low
608
Severity not reported
4,243
In CISA KEV
186
Most affected vendors (by CPE data where available): microsoft (1423), linux (722), google (413), ibm (321), oracle (193), mozilla (182), adobe (165), broadcom (118), apache (115), fabian (98)
| CVE | Severity | CVSS | KEV | Vendor / product | Published | Modified |
|---|---|---|---|---|---|---|
| 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-2026-83886 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-2026-83896 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-2026-83899 Improper privilege management in Windows Installer allows an authorized attacker... |
high | 7.0 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-21 |
| CVE-2026-83900 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-2026-69943 Improper limitation of a pathname to a restricted directory ('path traversal') i... |
high | 8.8 | — | Microsoft / sharepoint server | 2026-10-13 | 2026-10-20 |
| CVE-2026-102201 Use after free in Microsoft Windows Media Foundation allows an authorized attack... |
high | 7.8 | — | Microsoft / windows 10 1809 | 2026-10-13 | 2026-10-20 |
| CVE-2026-102202 Improper access control in Windows Container Isolation FS Filter Driver (unionfs... |
high | 7.8 | — | Microsoft / windows 11 23h2 | 2026-10-13 | 2026-10-20 |
| CVE-2026-102203 Access of resource using incompatible type ('type confusion') in RPC Runtime all... |
high | 8.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-20 |
| CVE-2026-102205 Heap-based buffer overflow in Windows Universal Disk Format File System Driver (... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-20 |
| CVE-2026-102207 Concurrent execution using shared resource with improper synchronization ('race... |
high | 7.0 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-20 |
| CVE-2026-102208 Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker t... |
high | 7.0 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-20 |
| CVE-2026-102209 Heap-based buffer overflow in Microsoft Graphics Component allows an authorized... |
high | 7.0 | — | Microsoft / windows 11 26h1 | 2026-10-13 | 2026-10-20 |
| CVE-2026-102211 Use after free in Windows Virtualization-Based Security (VBS) Enclave allows an... |
high | 7.0 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-20 |
| CVE-2026-102189 Heap-based buffer overflow in Windows Storage allows an authorized attacker to e... |
high | 7.0 | — | Microsoft / windows 11 23h2 | 2026-10-13 | 2026-10-20 |
| CVE-2026-102191 Heap-based buffer overflow in Windows Storage allows an authorized attacker to e... |
high | 7.0 | — | Microsoft / windows 11 23h2 | 2026-10-13 | 2026-10-20 |
| CVE-2026-102192 Integer underflow (wrap or wraparound) in Windows Failover Cluster allows an una... |
high | 7.5 | — | Microsoft / windows server 2019 | 2026-10-13 | 2026-10-20 |
| CVE-2026-102193 Use after free in Windows Broadcast DVR User Service allows an authorized attack... |
high | 7.0 | — | Microsoft / windows 10 1809 | 2026-10-13 | 2026-10-20 |
| CVE-2026-102194 Use after free in Windows Graphics Kernel allows an authorized attacker to eleva... |
high | 7.0 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-20 |
| CVE-2026-102195 Use after free in Windows Broadcast DVR User Service allows an authorized attack... |
high | 7.0 | — | Microsoft / windows 11 23h2 | 2026-10-13 | 2026-10-20 |
| CVE-2026-102196 Use after free in Windows Broadcast DVR User Service allows an authorized attack... |
high | 7.8 | — | Microsoft / windows 10 1809 | 2026-10-13 | 2026-10-20 |
| CVE-2026-102197 Use after free in Windows Broadcast DVR User Service allows an authorized attack... |
high | 7.0 | — | Microsoft / windows 10 1809 | 2026-10-13 | 2026-10-20 |
| CVE-2026-88164 Missing authorization in Microsoft Office SharePoint allows an authorized attack... |
high | 8.8 | — | Microsoft / sharepoint server | 2026-10-14 | 2026-10-20 |
| CVE-2026-100200 Use after free in Windows Update Service allows an authorized attacker to elevat... |
high | 7.0 | — | Microsoft / windows 11 23h2 | 2026-10-13 | 2026-10-20 |
| CVE-2026-100201 Heap-based buffer overflow in Windows Client License Service allows an authorize... |
high | 7.0 | — | Microsoft / windows 10 1809 | 2026-10-13 | 2026-10-20 |
| CVE-2026-100203 Heap-based buffer overflow in Windows Update Service allows an authorized attack... |
high | 7.0 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-20 |
| CVE-2026-100215 Heap-based buffer overflow in Microsoft Graphics Component allows an unauthorize... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-20 |
| CVE-2026-100216 Stack-based buffer overflow in Windows Storage allows an authorized attacker to... |
high | 7.0 | — | Microsoft / windows 10 1809 | 2026-10-13 | 2026-10-20 |
| CVE-2026-100217 Improper privilege management in Windows Group Policy allows an authorized attac... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-20 |
| CVE-2026-100218 Use after free in Remote Desktop Gateway Service allows an unauthorized attacker... |
high | 8.1 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-20 |
| CVE-2026-100220 Heap-based buffer overflow in Windows Media Video Decoder allows an unauthorized... |
high | 8.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-20 |
| CVE-2026-100225 Heap-based buffer overflow in Windows Storage allows an authorized attacker to e... |
high | 7.0 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-20 |
| CVE-2026-62895 Permissive cross-domain policy with untrusted domains in Azure Arc allows an una... |
high | 8.8 | — | Microsoft / azure arc sql server extension | 2026-09-08 | 2026-10-20 |
| CVE-2026-102855 Heap-based buffer overflow in Microsoft Office Visio allows an unauthorized atta... |
high | 8.8 | — | Microsoft / 365 apps | 2026-10-13 | 2026-10-20 |
| CVE-2026-108426 Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attac... |
high | 8.8 | — | Microsoft / 365 apps | 2026-10-15 | 2026-10-20 |
| CVE-2026-108427 Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attac... |
high | 8.8 | — | Microsoft / 365 apps | 2026-10-15 | 2026-10-20 |
| CVE-2026-108428 Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attac... |
high | 8.8 | — | Microsoft / 365 apps | 2026-10-15 | 2026-10-20 |
| CVE-2026-108429 Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attac... |
high | 8.8 | — | Microsoft / 365 apps | 2026-10-15 | 2026-10-20 |
| CVE-2026-108430 Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attac... |
high | 8.8 | — | Microsoft / 365 apps | 2026-10-15 | 2026-10-20 |
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.