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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.

Published in October 2026Materially updated (Critical / KEV)
Total records
16,212
Critical
1,207
High
5,399
Medium
5,736
Low
600
Severity not reported
3,270
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)

CVESeverityCVSSKEVVendor / productPublishedModified
CVE-2026-83573
Integer overflow or wraparound in Windows Kernel Mode Driver allows an unauthori...
medium 6.8 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-83565
Buffer over-read in Windows Encrypting File System (EFS) allows an authorized at...
medium 5.5 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-83500
Url redirection to untrusted site ('open redirect') in Windows BitLocker allows...
medium 6.1 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-83504
Time-of-check time-of-use (toctou) race condition in Windows SmartScreen allows...
medium 4.7 —Microsoft / windows 11 23h2 2026-10-132026-10-28
CVE-2026-83507
Improper link resolution before file access ('link following') in Windows Update...
medium 5.5 —Microsoft / windows 10 21h2 2026-10-132026-10-28
CVE-2026-81964
Use of hard-coded credentials in Windows Update Orchestrator Service allows an a...
medium 5.5 —Microsoft / windows 10 21h2 2026-10-132026-10-28
CVE-2026-70293
Use of uninitialized resource in Windows Win32 Kernel Subsystem allows an author...
medium 5.5 —Microsoft / windows 10 1607 2026-10-132026-10-21
CVE-2026-70294
Out-of-bounds read in Windows Win32 Kernel Subsystem allows an authorized attack...
medium 5.5 —Microsoft / windows 10 1607 2026-10-132026-10-21
CVE-2026-70295
Out-of-bounds read in Windows Win32 Kernel Subsystem allows an authorized attack...
medium 5.5 —Microsoft / windows 10 1607 2026-10-132026-10-21
CVE-2026-70298
Improper limitation of a pathname to a restricted directory ('path traversal') i...
medium 6.5 —Microsoft / sharepoint server 2026-10-132026-10-14
CVE-2026-70288
Time-of-check time-of-use (toctou) race condition in Windows Win32 Kernel Subsys...
medium 5.5 —Microsoft / windows 10 1607 2026-10-132026-10-21
CVE-2026-70292
Out-of-bounds read in Windows Win32 Kernel Subsystem allows an authorized attack...
medium 5.5 —Microsoft / windows 10 1607 2026-10-132026-10-21
CVE-2026-70277
Out-of-bounds read in Windows Fast FAT Driver allows an unauthorized attacker to...
medium 5.5 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-70280
Incorrect authorization in Windows Hello allows an authorized attacker to bypass...
medium 5.5 —Microsoft / windows 10 21h2 2026-10-132026-10-28
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
CVE-2026-70263
Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to d...
medium 6.5 —Microsoft / 365 apps 2026-10-132026-10-15
CVE-2026-70270
Untrusted pointer dereference in Windows Container Isolation FS Filter Driver al...
medium 5.5 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-70259
Server-side request forgery (ssrf) in Microsoft Office SharePoint allows an auth...
medium 6.5 —Microsoft / sharepoint server 2026-10-132026-10-14
CVE-2026-70260
Exposure of sensitive system information to an unauthorized control sphere in Mi...
medium 5.5 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-70261
Exposure of sensitive system information to an unauthorized control sphere in Mi...
medium 5.5 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-70248
Null pointer dereference in Windows Hyper-V allows an authorized attacker to den...
medium 6.5 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-70244
Out-of-bounds read in DNS Server allows an unauthorized attacker to disclose inf...
medium 6.5 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-70235
Improper authentication in Windows Event Tracing allows an authorized attacker t...
medium 5.5 —Microsoft / windows 11 24h2 2026-10-132026-10-28
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-2026-70234
Buffer over-read in Desktop Window Manager allows an authorized attacker to disc...
medium 5.5 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-70227
Out-of-bounds read in Windows Device Association Service allows an authorized at...
medium 5.5 —Microsoft / windows 11 23h2 2026-10-132026-10-28
CVE-2026-70214
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to...
medium 5.5 —Microsoft / 365 apps 2026-10-132026-10-14
CVE-2026-70216
Insufficient granularity of access control in Windows Mobile Device Management a...
medium 5.5 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-70217
Improper access control in Microsoft Office SharePoint allows an authorized atta...
medium 4.9 —Microsoft / sharepoint server 2026-10-132026-10-14
CVE-2026-70219
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to...
medium 6.5 —Microsoft / 365 apps 2026-10-132026-10-14
CVE-2026-70211
Out-of-bounds read in Windows Win32 Kernel Subsystem allows an authorized attack...
medium 5.5 —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-2026-70201
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-2026-70206
Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to d...
medium 6.5 —Microsoft / 365 apps 2026-10-132026-10-15
CVE-2026-70208
Out-of-bounds read in Windows HTTP.sys allows an authorized attacker to disclose...
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-2026-70170
Untrusted pointer dereference in Windows Kernel allows an authorized attacker to...
medium 6.5 —Microsoft / windows 10 1607 2026-10-132026-10-22
CVE-2026-70173
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-2026-70166
Out-of-bounds read in Windows DNS allows an authorized attacker to deny service...
medium 6.5 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-70141
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

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.