October 2026 CVE archive
Records last modified 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. 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
22,229
Critical
3,102
High
7,094
Medium
6,630
Low
674
Severity not reported
4,729
In CISA KEV
188
Most affected vendors (by CPE data where available): microsoft (1176), google (780), ibm (323), mozilla (182), oracle (154), adobe (137), linux (126), apache (116), broadcom (113), fabian (98)
| CVE | Severity | CVSS | KEV | Vendor / product | Published | Modified |
|---|---|---|---|---|---|---|
| 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-2026-83876 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-2026-83853 Use after free in Windows Hello allows an authorized attacker to elevate privile... |
high | 7.0 | — | Microsoft / windows 10 21h2 | 2026-10-13 | 2026-10-21 |
| CVE-2026-83855 Integer underflow (wrap or wraparound) in Windows WLAN Service allows an unautho... |
high | 7.5 | — | Microsoft / windows 11 23h2 | 2026-10-13 | 2026-10-21 |
| CVE-2026-83856 Out-of-bounds read in Windows Event Logging Service allows an unauthorized attac... |
high | 8.1 | — | Microsoft / windows 11 23h2 | 2026-10-13 | 2026-10-21 |
| CVE-2026-83857 Use after free in Windows Universal Disk Format File System Driver (UDFS) allows... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-21 |
| CVE-2026-83859 Use after free in Windows NTFS allows an authorized attacker to elevate privileg... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-21 |
| CVE-2026-83860 Stack-based buffer overflow in Windows GDI allows an unauthorized attacker to de... |
high | 7.5 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-21 |
| CVE-2026-83861 Heap-based buffer overflow in Windows Remote Desktop Protocol allows an authoriz... |
high | 7.8 | — | 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-2026-70095 Heap-based buffer overflow in Windows iSCSI allows an unauthorized attacker to e... |
high | 7.5 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-21 |
| CVE-2026-70102 Use after free in Windows Spaceport.sys allows an authorized attacker to elevate... |
high | 7.8 | — | Microsoft / windows 10 1809 | 2026-10-13 | 2026-10-21 |
| CVE-2026-70103 Heap-based buffer overflow in Windows Error Reporting allows an authorized attac... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-21 |
| CVE-2026-70104 Untrusted pointer dereference in Windows Win32 Kernel Subsystem allows an author... |
high | 7.8 | — | Microsoft / windows 10 1809 | 2026-10-13 | 2026-10-21 |
| CVE-2026-70106 Heap-based buffer overflow in Windows Kernel allows an authorized attacker to el... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-21 |
| CVE-2026-70093 Heap-based buffer overflow in Windows Rich Text Edit Control allows an authorize... |
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-2026-70092 Heap-based buffer overflow in Microsoft PostScript Printer Driver allows an unau... |
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-2026-83886 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 |
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.