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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-2026-70087
Incorrect authorization in DNS Server allows an authorized attacker to bypass a...
medium 5.5 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-70090
Use of uninitialized resource in Windows Netlogon allows an authorized attacker...
medium 5.5 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-70075
Time-of-check time-of-use (toctou) race condition in Windows Virtualization-Base...
medium 4.4 —Microsoft / windows 10 1809 2026-10-132026-10-28
CVE-2026-70077
Use after free in Windows Kernel allows an authorized attacker to disclose infor...
medium 4.7 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-70083
Incorrect authorization in DNS Server allows an authorized attacker to perform t...
medium 5.5 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-70084
Improper access control in Windows Projected File System allows an authorized at...
medium 5.5 —Microsoft / windows 10 1809 2026-10-132026-10-28
CVE-2026-70071
Improper verification of cryptographic signature in DNS Server allows an authori...
medium 5.5 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-70072
Allocation of resources without limits or throttling in Windows Netlogon allows...
medium 6.5 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-70074
Out-of-bounds read in Windows DNS allows an authorized attacker to disclose info...
medium 5.5 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-70063
Out-of-bounds read in Windows Kernel allows an authorized attacker to disclose i...
medium 4.7 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-70055
Exposure of sensitive system information to an unauthorized control sphere in Wi...
medium 5.5 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-70057
Incorrect authorization in Windows Routing and Remote Access Service (RRAS) allo...
medium 5.5 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-70044
Out-of-bounds read in Microsoft Windows Media Foundation allows an unauthorized...
medium 5.5 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-70041
Buffer over-read in Windows CD-ROM Driver allows an authorized attacker to discl...
medium 5.5 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-70017
Access of resource using incompatible type ('type confusion') in Windows Secure...
medium 5.5 —Microsoft / windows 10 1809 2026-10-132026-10-16
CVE-2026-70025
Use after free in Windows Netlogon allows an authorized attacker to deny service...
medium 6.5 —Microsoft / windows 10 1607 2026-10-132026-10-16
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-2026-69999
Out-of-bounds read in Windows Update allows an authorized attacker to disclose i...
medium 5.5 —Microsoft / windows 11 23h2 2026-10-132026-10-19
CVE-2026-70005
Weak authentication in Active Directory Federation Services (AD FS) allows an un...
medium 5.9 —Microsoft / windows server 2019 2026-10-132026-10-28
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-2026-69967
Out-of-bounds read in Windows Overlay Filter allows an authorized attacker to di...
medium 5.5 —Microsoft / windows 10 1607 2026-10-132026-10-29
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-2026-69958
Heap-based buffer overflow in Windows Overlay Filter allows an unauthorized atta...
medium 6.8 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-69954
Buffer over-read in Windows Overlay Filter allows an authorized attacker to disc...
medium 5.5 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-69955
Out-of-bounds read in Windows Client for NFS allows an unauthorized attacker to...
medium 6.5 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-69940
Out-of-bounds read in Windows Client for NFS allows an unauthorized attacker to...
medium 6.5 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-69947
Heap-based buffer overflow in Windows Overlay Filter allows an unauthorized atta...
medium 6.8 —Microsoft / windows 10 21h2 2026-10-132026-10-16
CVE-2026-69919
Out-of-bounds read in Windows Cryptographic Services allows an authorized attack...
medium 5.5 —Microsoft / windows 11 24h2 2026-10-132026-10-16
CVE-2026-69922
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-2026-69905
Missing authorization in Windows AppX Deployment Service allows an authorized at...
medium 5.5 —Microsoft / windows 10 1809 2026-10-132026-10-16
CVE-2026-69914
Out-of-bounds read in Windows AppX Deployment Service allows an authorized attac...
medium 5.5 —Microsoft / windows 10 1809 2026-10-132026-10-16
CVE-2026-69902
Untrusted pointer dereference in Windows NTFS allows an authorized attacker to e...
medium 6.7 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-69877
Origin validation error in Azure DevOps allows an unauthorized attacker to discl...
medium 6.5 —— 2026-10-132026-10-13
CVE-2026-69721
Out-of-bounds read in Windows iSCSI allows an authorized attacker to disclose in...
medium 5.5 —— 2026-10-132026-10-16

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.