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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.

Published in October 2026Materially updated (Critical / KEV)
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)

CVESeverityCVSSKEVVendor / productPublishedModified
CVE-2026-70173
Out-of-bounds read in Microsoft Windows Search Component allows an authorized at...
medium 5.5 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-70195
Use after free in Windows Ancillary Function Driver for WinSock allows an author...
medium 4.7 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-70201
Out-of-bounds read in Windows DHCP Server allows an authorized attacker to deny...
medium 5.5 —Microsoft / windows server 2012 2026-10-132026-10-28
CVE-2026-83794
Out-of-bounds read in Windows Portable Device MTP Driver allows an authorized at...
medium 5.5 —Microsoft / windows 10 1607 2026-10-132026-10-27
CVE-2026-83798
Improper verification of cryptographic signature in Windows Update Stack allows...
medium 5.5 —Microsoft / windows 10 1607 2026-10-132026-10-27
CVE-2026-83835
Buffer over-read in Windows Common Log File System Driver allows an authorized a...
medium 5.5 —Microsoft / windows 10 1607 2026-10-132026-10-27
CVE-2026-103576
Url redirection to untrusted site ('open redirect') in Active Directory Federati...
medium 6.5 —Microsoft / windows 10 1607 2026-10-132026-10-27
CVE-2026-87698
Out-of-bounds read in Windows Remote Access Service Infrastructure allows an aut...
medium 5.5 —Microsoft / windows 10 1607 2026-10-132026-10-27
CVE-2026-105006
Use after free in HID class driver allows an unauthorized attacker to elevate pr...
medium 6.4 —Microsoft / windows 10 1607 2026-10-132026-10-27
CVE-2026-85909
Out-of-bounds read in Windows Universal Disk Format File System Driver (UDFS) al...
medium 5.5 —Microsoft / windows 10 1607 2026-10-132026-10-26
CVE-2026-85910
Buffer over-read in Windows StateRepository API allows an authorized attacker to...
medium 5.5 —Microsoft / windows 11 24h2 2026-10-132026-10-26
CVE-2026-70011
Out-of-bounds read in Windows IP Over USB Service allows an authorized attacker...
medium 5.5 —Microsoft / windows 10 21h2 2026-10-132026-10-26
CVE-2026-108462
Exposure of sensitive system information to an unauthorized control sphere in Wi...
medium 5.5 —Microsoft / windows 10 1607 2026-10-132026-10-26
CVE-2026-108466
Out-of-bounds read in Windows Kernel allows an unauthorized attacker to deny ser...
medium 5.3 —Microsoft / windows 10 1607 2026-10-132026-10-26
CVE-2026-69968
Relative path traversal in Windows Libarchive allows an unauthorized attacker to...
medium 6.5 —Microsoft / windows 10 1809 2026-10-132026-10-26
CVE-2026-69969
Improper link resolution before file access ('link following') in Windows AppX D...
medium 4.7 —Microsoft / windows 10 21h2 2026-10-132026-10-26
CVE-2026-69971
Incorrect authorization in Windows Kernel-Mode Drivers allows an authorized atta...
medium 5.5 —Microsoft / windows 11 24h2 2026-10-132026-10-26
CVE-2026-69973
Improper limitation of a pathname to a restricted directory ('path traversal') i...
medium 6.5 —Microsoft / windows 10 1809 2026-10-132026-10-26
CVE-2026-69974
Out-of-bounds read in Desktop Window Manager allows an authorized attacker to di...
medium 4.7 —Microsoft / windows 10 1809 2026-10-132026-10-26
CVE-2026-69978
Null pointer dereference in Windows VMSwitch allows an authorized attacker to de...
medium 5.5 —Microsoft / windows 10 1809 2026-10-132026-10-26
CVE-2026-69979
Improper protection of alternate path in Windows AppX Deployment Service allows...
medium 5.5 —Microsoft / windows 10 21h2 2026-10-132026-10-26
CVE-2026-69982
Weak authentication in Active Directory Federation Services (AD FS) allows an un...
medium 5.9 —Microsoft / windows 10 1607 2026-10-132026-10-26
CVE-2026-59116
Use of a broken or risky cryptographic algorithm in Windows Remote Desktop allow...
medium 6.8 —Microsoft / windows 10 1607 2026-10-132026-10-26
CVE-2026-62687
Improper link resolution before file access ('link following') in Windows Backup...
medium 5.5 —Microsoft / windows 10 21h2 2026-10-132026-10-26
CVE-2026-62879
Missing authentication for critical function in Windows SmartScreen allows an au...
medium 5.5 —Microsoft / windows 10 1809 2026-10-132026-10-26
CVE-2026-69635
Heap-based buffer overflow in Windows Installer allows an authorized attacker to...
medium 6.6 —Microsoft / windows 10 1607 2026-10-132026-10-26
CVE-2026-69640
Incorrect authorization in Windows Key Distribution Center allows an authorized...
medium 5.3 —Microsoft / windows 10 1607 2026-10-132026-10-26
CVE-2026-96910
Untrusted pointer dereference in Microsoft Windows Search Component allows an au...
medium 5.5 —Microsoft / windows 10 1607 2026-10-132026-10-26
CVE-2026-103567
Buffer over-read in Windows Broadcast DVR User Service allows an authorized atta...
medium 5.5 —Microsoft / windows 10 1809 2026-10-132026-10-26
CVE-2026-103578
Untrusted pointer dereference in Windows Kernel allows an unauthorized attacker...
medium 6.8 —Microsoft / windows 11 26h1 2026-10-132026-10-26
CVE-2026-102221
No cwe for this issue in Windows Secure Boot allows an authorized attacker to by...
medium 4.4 —Microsoft / windows 10 1607 2026-10-132026-10-26
CVE-2026-83925
Use of uninitialized resource in Windows Kernel allows an authorized attacker to...
medium 4.7 —Microsoft / windows 10 1607 2026-10-132026-10-26
CVE-2026-83926
Improper certificate validation in Windows Hello allows an authorized attacker t...
medium 4.4 —Microsoft / windows 10 1809 2026-10-132026-10-26
CVE-2026-69506
Out-of-bounds read in Windows Key Storage Provider allows an authorized attacker...
medium 4.7 —Microsoft / windows 10 1607 2026-10-132026-10-23
CVE-2026-96303
Improperly implemented security check for standard in Microsoft PowerShell allow...
medium 6.5 —Microsoft / powershell 2026-10-132026-10-22
CVE-2026-85790
Use after free in Microsoft QUIC allows an unauthorized attacker to disclose inf...
medium 5.9 —Microsoft / windows 11 23h2 2026-10-132026-10-22
CVE-2026-70170
Untrusted pointer dereference in Windows Kernel allows an authorized attacker to...
medium 6.5 —Microsoft / windows 10 1607 2026-10-132026-10-22
CVE-2026-70199
Exposure of sensitive system information to an unauthorized control sphere in Wi...
medium 5.5 —Microsoft / windows 10 1607 2026-10-132026-10-22
CVE-2026-70232
Exposure of sensitive system information to an unauthorized control sphere in Wi...
medium 5.5 —Microsoft / windows 10 1607 2026-10-132026-10-22
CVE-2026-70284
Use of uninitialized resource in Windows Win32 Kernel Subsystem allows an author...
medium 5.5 —Microsoft / windows 10 1607 2026-10-132026-10-21

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.