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October 2026 CVE archive

Records published 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.

Published in October 2026Materially updated (Critical / KEV)
Total records
17,479
Critical
1,340
High
5,869
Medium
6,256
Low
648
Severity not reported
3,366
In CISA KEV
20

Most affected vendors (by CPE data where available): microsoft (1307), google (756), oracle (156), ibm (140), adobe (138), broadcom (61), langflow (57), apache (45), freerdp (42), linuxfoundation (41)

CVESeverityCVSSKEVVendor / productPublishedModified
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-2026-85935
Buffer over-read in Windows USB Driver allows an authorized attacker to disclose...
medium 5.5 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-85938
Improper access control in Windows Broadcast DVR User Service allows an authoriz...
medium 5.5 —Microsoft / windows 10 1809 2026-10-132026-10-28
CVE-2026-85939
Weak authentication in Windows Kernel allows an authorized attacker to bypass a...
medium 5.3 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-85932
Improper limitation of a pathname to a restricted directory ('path traversal') i...
medium 6.5 —Microsoft / sharepoint server 2026-10-132026-10-14
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-2026-85916
Exposure of private personal information to an unauthorized actor in Azure Activ...
medium 5.5 —Microsoft / windows 11 23h2 2026-10-132026-10-16
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-2026-85873
Improper authorization in Skype for Business and Microsoft Lync allows an author...
medium 6.5 —— 2026-10-132026-10-16
CVE-2026-85865
Improper authentication in Windows DHCP Server allows an authorized attacker to...
medium 5.5 —Microsoft / windows 10 1607 2026-10-132026-10-29
CVE-2026-85866
Exposure of sensitive system information to an unauthorized control sphere in Wi...
medium 4.7 —Microsoft / windows 10 1809 2026-10-132026-10-29
CVE-2026-85857
Insertion of sensitive information into log file in Windows Kernel-Mode Drivers...
medium 5.5 —Microsoft / windows 10 1607 2026-10-132026-10-29
CVE-2026-85859
Null pointer dereference in Windows Message Queuing Queue Manager allows an auth...
medium 6.5 —Microsoft / windows 10 1607 2026-10-132026-10-29
CVE-2026-85852
Out-of-bounds read in Windows Management Instrumentation allows an authorized at...
medium 5.5 —Microsoft / windows 10 1607 2026-10-132026-10-29
CVE-2026-85841
Use after free in Windows DHCP Server allows an authorized attacker to execute c...
medium 6.6 —Microsoft / windows 10 1607 2026-10-132026-10-29
CVE-2026-85847
Out-of-bounds read in Windows Print Spooler Components allows an unauthorized at...
medium 6.5 —Microsoft / windows 10 1607 2026-10-132026-10-29
CVE-2026-85835
Buffer over-read in Servicing Stack Updates allows an authorized attacker to dis...
medium 5.5 —— 2026-10-132026-10-13
CVE-2026-85840
Files or directories accessible to external parties in Windows Event Viewer allo...
medium 6.5 —Microsoft / windows 10 1607 2026-10-132026-10-29
CVE-2026-85830
Out-of-bounds read in Windows Installer allows an authorized attacker to disclos...
medium 5.5 —Microsoft / windows 10 1607 2026-10-132026-10-29
CVE-2026-85831
Heap-based buffer overflow in Windows Biometric Service allows an authorized att...
medium 5.5 —Microsoft / windows 10 1809 2026-10-132026-10-29
CVE-2026-85815
Out-of-bounds read in Windows Device Association Service allows an authorized at...
medium 5.5 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-85816
Out-of-bounds read in Windows Wi-Fi Driver allows an authorized attacker to disc...
medium 5.7 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-85821
Out-of-bounds read in Windows Universal Disk Format File System Driver (UDFS) al...
medium 6.5 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-85812
Files or directories accessible to external parties in Windows Bind Filter Drive...
medium 5.5 —Microsoft / windows 10 21h2 2026-10-132026-10-16
CVE-2026-85805
Improperly implemented security check for standard in Windows PowerShell allows...
medium 6.5 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-85747
Distribution is a toolkit to pack, ship, store, and deliver container content.
medium 6.8 —— 2026-10-132026-10-18
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-2026-85793
Exposure of sensitive system information to an unauthorized control sphere in Wi...
medium 5.5 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-85794
Out-of-bounds read in Windows Routing and Remote Access Service (RRAS) allows an...
medium 5.5 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-85374
Out-of-bounds read in Windows Installer allows an authorized attacker to disclos...
medium 5.5 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-85336
Out-of-bounds read in Windows Device Association Service allows an authorized at...
medium 5.5 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-85337
Out-of-bounds read in Remote Desktop Client allows an unauthorized attacker to d...
medium 6.5 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-85331
Out-of-bounds read in Windows Device Association Service allows an authorized at...
medium 6.5 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-85320
Use of uninitialized resource in Windows Print Spooler Components allows an auth...
medium 5.5 —Microsoft / windows 10 1607 2026-10-132026-10-29
CVE-2026-85323
Weak authentication in Network Device Enrollment Service (NDES) allows an author...
medium 6.8 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-84011
Incorrect authorization in Windows SMB Client allows an authorized attacker to b...
medium 5.5 —Microsoft / windows 11 23h2 2026-10-132026-10-19
CVE-2026-83933
Improper link resolution before file access ('link following') in Windows Update...
medium 5.5 —Microsoft / windows 10 21h2 2026-10-132026-10-29
CVE-2026-84007
Out-of-bounds read in Remote Desktop Gateway Service allows an authorized attack...
medium 6.5 —Microsoft / windows server 2012 2026-10-132026-10-19
CVE-2026-84009
Time-of-check time-of-use (toctou) race condition in Windows Projected File Syst...
medium 4.7 —Microsoft / windows 10 1809 2026-10-132026-10-19
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

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.