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
16,209
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)
| CVE | Severity | CVSS | KEV | Vendor / product | Published | Modified |
|---|---|---|---|---|---|---|
| CVE-2026-88185 Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attac... |
high | 8.1 | — | Microsoft / 365 apps | 2026-10-13 | 2026-10-15 |
| CVE-2026-88186 Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attac... |
high | 8.8 | — | Microsoft / 365 apps | 2026-10-13 | 2026-10-15 |
| CVE-2026-88188 Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-16 |
| CVE-2026-88174 Concurrent execution using shared resource with improper synchronization ('race... |
high | 8.1 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-20 |
| CVE-2026-88177 Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-20 |
| CVE-2026-88179 Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-20 |
| CVE-2026-88180 Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to... |
high | 7.8 | — | Microsoft / windows 10 1809 | 2026-10-13 | 2026-10-20 |
| CVE-2026-88181 Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to... |
high | 7.8 | — | Microsoft / windows 10 1809 | 2026-10-13 | 2026-10-20 |
| CVE-2026-88165 Out-of-bounds write in Active Directory Domain Services allows an authorized att... |
high | 8.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-20 |
| CVE-2026-88166 Integer overflow or wraparound in Microsoft Office SharePoint allows an authoriz... |
high | 8.8 | — | Microsoft / sharepoint server | 2026-10-13 | 2026-10-14 |
| CVE-2026-88168 Heap-based buffer overflow in Windows Bind Filter Driver allows an authorized at... |
high | 7.8 | — | Microsoft / windows 10 1809 | 2026-10-13 | 2026-10-20 |
| CVE-2026-88171 Double free in Windows DHCP Server allows an unauthorized attacker to execute co... |
high | 8.1 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-20 |
| CVE-2026-88173 Use after free in Windows Background Intelligent Transfer Service (BITS) allows... |
high | 8.1 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-20 |
| 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-2026-88160 Concurrent execution using shared resource with improper synchronization ('race... |
high | 7.0 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-20 |
| CVE-2026-88161 Use after free in Windows Local Security Authority (LSA) allows an authorized at... |
high | 7.0 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-20 |
| CVE-2026-88163 Integer overflow or wraparound in Microsoft Office SharePoint allows an authoriz... |
high | 8.8 | — | Microsoft / sharepoint server | 2026-10-13 | 2026-10-14 |
| 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-2026-88155 Heap-based buffer overflow in Microsoft Office SharePoint allows an authorized a... |
high | 8.8 | — | Microsoft / sharepoint server | 2026-10-13 | 2026-10-14 |
| 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-2026-88144 Use after free in Microsoft Office PowerPoint allows an unauthorized attacker to... |
high | 8.8 | — | Microsoft / 365 apps | 2026-10-13 | 2026-10-15 |
| CVE-2026-88145 Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized atta... |
high | 8.8 | — | Microsoft / 365 apps | 2026-10-13 | 2026-10-15 |
| 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-2026-88147 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-2026-88150 Use of uninitialized resource in Microsoft Office Word allows an unauthorized at... |
high | 8.8 | — | Microsoft / 365 apps | 2026-10-13 | 2026-10-15 |
| CVE-2026-88139 Use after free in Windows Kernel allows an authorized attacker to elevate privil... |
high | 7.0 | — | Microsoft / windows 11 24h2 | 2026-10-13 | 2026-10-28 |
| CVE-2026-88141 Use after free in Windows Kernel allows an authorized attacker to elevate privil... |
high | 7.0 | — | Microsoft / windows 11 23h2 | 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-2026-88143 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-2026-88133 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-2026-88124 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-2026-88127 Use after free in Windows SMB Server allows an authorized attacker to elevate pr... |
high | 7.0 | — | 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-2026-88117 Use after free in Windows DHCP Server allows an unauthorized attacker to execute... |
high | 8.1 | — | Microsoft / windows server 2012 | 2026-10-13 | 2026-10-28 |
| CVE-2026-88118 Integer overflow or wraparound in Windows Background Intelligent Transfer Servic... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-28 |
| CVE-2026-88119 Use after free in Windows DHCP Server allows an unauthorized attacker to execute... |
high | 8.1 | — | Microsoft / windows server 2012 | 2026-10-13 | 2026-10-28 |
| CVE-2026-88120 Use after free in Windows DHCP Server allows an unauthorized attacker to execute... |
high | 8.1 | — | Microsoft / windows server 2012 | 2026-10-13 | 2026-10-28 |
| CVE-2026-88121 Use after free in Windows Background Intelligent Transfer Service (BITS) allows... |
high | 8.8 | — | 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.