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-2026-88124 Use after free in Windows Installer allows an authorized attacker to elevate pri... |
high | 7.0 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-28 |
| CVE-2026-83638 Heap-based buffer overflow in Windows USB Driver allows an authorized attacker t... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-28 |
| CVE-2026-88128 Heap-based buffer overflow in Windows DWM Core Library allows an authorized atta... |
high | 7.8 | — | Microsoft / windows 10 1809 | 2026-10-13 | 2026-10-28 |
| CVE-2026-88133 Improper authorization in Windows Portable Device Enumerator Service allows an a... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-28 |
| CVE-2026-88134 Use after free in Windows Kernel allows an authorized attacker to elevate privil... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-28 |
| CVE-2026-88142 Use after free in Windows Background Intelligent Transfer Service (BITS) allows... |
high | 8.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-28 |
| CVE-2026-83637 Out-of-bounds read in Windows Kernel-Mode Drivers allows an authorized attacker... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-28 |
| CVE-2026-88143 Heap-based buffer overflow in Windows Storage Spaces Controller allows an author... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-28 |
| CVE-2026-88146 Concurrent execution using shared resource with improper synchronization ('race... |
high | 7.0 | — | Microsoft / windows 10 1809 | 2026-10-13 | 2026-10-28 |
| CVE-2026-83634 Double free in Windows BitLocker allows an authorized attacker to elevate privil... |
high | 7.8 | — | Microsoft / windows 11 23h2 | 2026-10-13 | 2026-10-28 |
| CVE-2026-88147 Heap-based buffer overflow in Windows Secure Socket Tunneling Protocol (SSTP) al... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-28 |
| CVE-2026-88149 Double free in Windows Ancillary Function Driver for WinSock allows an authorize... |
high | 7.0 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-28 |
| CVE-2026-83584 Use after free in Windows Smart Card allows an authorized attacker to elevate pr... |
high | 7.0 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-28 |
| CVE-2026-88157 Heap-based buffer overflow in OpenSSH for Windows allows an unauthorized attacke... |
high | 8.8 | — | Microsoft / windows 10 1809 | 2026-10-13 | 2026-10-28 |
| CVE-2026-83585 Use of externally-controlled format string in Windows NTFS allows an authorized... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-28 |
| CVE-2026-88159 Use after free in Windows Background Intelligent Transfer Service (BITS) allows... |
high | 8.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-28 |
| CVE-2026-83579 Heap-based buffer overflow in Windows Smart Card allows an authorized attacker t... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-28 |
| CVE-2026-83575 Use after free in Microsoft Windows Search Component allows an authorized attack... |
high | 7.0 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-28 |
| CVE-2026-83574 Use after free in Microsoft Windows Search Component allows an authorized attack... |
high | 7.0 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-28 |
| CVE-2026-83570 Use after free in Microsoft Windows Search Component allows an authorized attack... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-28 |
| CVE-2026-83568 Improper access control in Windows Kernel-Mode Drivers allows an authorized atta... |
high | 7.8 | — | Microsoft / windows 11 24h2 | 2026-10-13 | 2026-10-28 |
| CVE-2026-83567 Out-of-bounds read in Windows NTFS allows an authorized attacker to elevate priv... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-28 |
| CVE-2026-83566 Use after free in Windows Win32K - ICOMP allows an authorized attacker to elevat... |
high | 7.0 | — | Microsoft / windows 11 24h2 | 2026-10-13 | 2026-10-28 |
| CVE-2026-88152 Use after free in Windows Background Intelligent Transfer Service (BITS) allows... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-28 |
| CVE-2026-78459 Heap-based buffer overflow in Windows Internet Information Services allows an au... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-28 |
| CVE-2026-83511 Weak authentication in Active Directory Federation Services (AD FS) allows an un... |
high | 7.4 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-28 |
| CVE-2026-83506 Untrusted search path in Servicing Stack Updates allows an authorized attacker t... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-28 |
| CVE-2026-77496 Heap-based buffer overflow in Windows Imaging Component allows an unauthorized a... |
high | 8.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-28 |
| CVE-2026-72969 Use after free in Windows Program Compatibility Assistant Service allows an auth... |
high | 7.0 | — | Microsoft / windows 11 23h2 | 2026-10-13 | 2026-10-28 |
| CVE-2026-85339 Remote Code Execution in Windows Routing and Remote Access Service (RRAS) allows... |
high | 8.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-28 |
| CVE-2026-72968 Use after free in Windows Program Compatibility Assistant Service allows an auth... |
high | 7.0 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-28 |
| CVE-2026-85341 Heap-based buffer overflow in Windows USB Video Driver allows an authorized atta... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-28 |
| CVE-2026-72955 Use after free in Windows Application Compatibility Cache allows an authorized a... |
high | 7.0 | — | Microsoft / windows 11 23h2 | 2026-10-13 | 2026-10-28 |
| CVE-2026-85342 Use after free in Windows Device Association Service allows an authorized attack... |
high | 7.0 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-28 |
| CVE-2026-72934 Use after free in Windows Program Compatibility Assistant Service allows an auth... |
high | 7.0 | — | Microsoft / windows 11 23h2 | 2026-10-13 | 2026-10-28 |
| CVE-2026-85343 Improper link resolution before file access ('link following') in Windows Hyper-... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-28 |
| CVE-2026-83510 Time-of-check time-of-use (toctou) race condition in Windows Setup Files Cleanup... |
high | 7.0 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-28 |
| CVE-2026-85352 Use after free in Windows Device Association Service allows an authorized attack... |
high | 7.0 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-28 |
| CVE-2026-83509 Untrusted search path in Windows Setup Files Cleanup allows an authorized attack... |
high | 7.0 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-28 |
| CVE-2026-85353 Out-of-bounds read in Windows Print Spooler Components allows an unauthorized at... |
high | 7.5 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-28 |
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.