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-2026-83797 Out-of-bounds read in Windows Partition Management Driver allows an unauthorized... |
high | 8.8 | — | Microsoft / windows 10 1809 | 2026-10-13 | 2026-10-27 |
| CVE-2026-83826 Untrusted pointer dereference in Windows Error Reporting allows an authorized at... |
high | 7.8 | — | Microsoft / windows 11 23h2 | 2026-10-13 | 2026-10-27 |
| CVE-2026-83827 Heap-based buffer overflow in Windows Bluetooth Port Driver allows an authorized... |
high | 7.0 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-27 |
| CVE-2026-83828 Heap-based buffer overflow in Windows MIDI Service Module allows an authorized a... |
high | 7.8 | — | Microsoft / windows 11 24h2 | 2026-10-13 | 2026-10-27 |
| CVE-2026-83829 Heap-based buffer overflow in Microsoft Windows Search Component allows an autho... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-27 |
| CVE-2026-83830 Heap-based buffer overflow in Windows COM+ Event System Service allows an author... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-27 |
| CVE-2026-83832 Out-of-bounds read in Windows Spaceport.sys allows an authorized attacker to ele... |
high | 7.8 | — | Microsoft / windows 10 1809 | 2026-10-13 | 2026-10-27 |
| CVE-2026-83833 Heap-based buffer overflow in Windows Kernel allows an authorized attacker to el... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-27 |
| CVE-2026-83834 Use after free in Windows Kernel-Mode Drivers allows an authorized attacker to e... |
high | 7.0 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-27 |
| CVE-2026-83836 Heap-based buffer overflow in Windows Event Tracing allows an unauthorized attac... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-27 |
| CVE-2026-83837 Improper access control in Windows Kernel-Mode Drivers allows an authorized atta... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-27 |
| CVE-2026-83838 Integer underflow (wrap or wraparound) in Windows Bluetooth A2DP driver allows a... |
high | 8.0 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-27 |
| CVE-2026-83839 Time-of-check time-of-use (toctou) race condition in Windows Hyper-V allows an a... |
high | 7.0 | — | Microsoft / windows 10 1809 | 2026-10-13 | 2026-10-27 |
| CVE-2026-83840 Weak authentication in Windows Error Reporting allows an authorized attacker to... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-27 |
| CVE-2026-83841 Concurrent execution using shared resource with improper synchronization ('race... |
high | 7.0 | — | Microsoft / windows 10 1809 | 2026-10-13 | 2026-10-27 |
| CVE-2026-105007 An elevation of privilege vulnerability exists in the Network Driver Interface S... |
high | 8.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-27 |
| CVE-2026-103555 Heap-based buffer overflow in Virtual Hard Disk (VHD) Miniport Driver allows an... |
high | 7.0 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-27 |
| CVE-2026-103575 Use after free in Remote Desktop Client allows an unauthorized attacker to execu... |
high | 8.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-27 |
| CVE-2026-103577 Insecure default variable initialization in Microsoft QUIC allows an unauthorize... |
high | 7.5 | — | Microsoft / windows 11 23h2 | 2026-10-13 | 2026-10-27 |
| CVE-2026-105003 Heap-based buffer overflow in HID class driver allows an authorized attacker to... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-27 |
| CVE-2026-87694 Use after free in Windows Installer allows an authorized attacker to elevate pri... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-27 |
| CVE-2026-87695 Inclusion of functionality from untrusted control sphere in Microsoft Exchange S... |
high | 7.8 | — | Microsoft / exchange server | 2026-10-13 | 2026-10-27 |
| CVE-2026-87696 Improper verification of cryptographic signature in Microsoft Exchange Server al... |
high | 7.5 | — | Microsoft / exchange server | 2026-10-13 | 2026-10-27 |
| CVE-2026-87699 Heap-based buffer overflow in Winlogon allows an authorized attacker to elevate... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-27 |
| CVE-2026-108458 Use after free in Remote Desktop Client allows an unauthorized attacker to execu... |
high | 8.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-27 |
| CVE-2026-108464 Use after free in Software Protection Platform (SPP) allows an authorized attack... |
high | 7.0 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-27 |
| CVE-2026-108467 Heap-based buffer overflow in Microsoft PostScript Printer Driver allows an auth... |
high | 8.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-27 |
| CVE-2026-109453 Heap-based buffer overflow in Virtual Hard Disk (VHD) Miniport Driver allows an... |
high | 7.0 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-27 |
| CVE-2026-69577 Out-of-bounds read in Microsoft Azure Attestation service and Device Health Atte... |
high | 7.5 | — | Microsoft / windows server 2019 | 2026-10-13 | 2026-10-27 |
| CVE-2026-69789 Heap-based buffer overflow in Reliable Multicast Transport Driver (RMCAST) allow... |
high | 7.5 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-27 |
| CVE-2026-69802 Weak authentication in Network Device Enrollment Service (NDES) allows an unauth... |
high | 8.1 | — | Microsoft / windows server 2012 | 2026-10-13 | 2026-10-27 |
| CVE-2026-69986 Use after free in Remote Desktop Client allows an unauthorized attacker to execu... |
high | 7.5 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-27 |
| CVE-2026-69987 Use after free in Remote Desktop Client allows an unauthorized attacker to execu... |
high | 7.5 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-27 |
| CVE-2026-102231 Improper resolution of path equivalence in Visual Studio Code allows an unauthor... |
high | 7.7 | — | Microsoft / visual studio code | 2026-10-13 | 2026-10-27 |
| CVE-2026-85911 Use after free in Windows StateRepository API allows an authorized attacker to e... |
high | 7.8 | — | Microsoft / windows 10 1809 | 2026-10-13 | 2026-10-26 |
| CVE-2026-85912 Concurrent execution using shared resource with improper synchronization ('race... |
high | 7.0 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-26 |
| CVE-2026-70112 Heap-based buffer overflow in Windows Spaceport.sys allows an authorized attacke... |
high | 7.8 | — | Microsoft / windows 10 1809 | 2026-10-13 | 2026-10-26 |
| CVE-2026-70113 Integer overflow or wraparound in Windows Client for NFS allows an authorized at... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-26 |
| CVE-2026-70008 Integer overflow or wraparound in Windows IP Over USB Service allows an authoriz... |
high | 7.8 | — | Microsoft / windows 10 21h2 | 2026-10-13 | 2026-10-26 |
| CVE-2026-70010 Heap-based buffer overflow in Windows NTFS allows an authorized attacker to elev... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-26 |
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.