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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-2026-105013
Deserialization of untrusted data in Microsoft Office SharePoint allows an autho...
high 7.4 —Microsoft / sharepoint server 2026-10-132026-10-14
CVE-2026-102866
Improper verification of cryptographic signature in Microsoft Office SharePoint...
high 8.1 —Microsoft / sharepoint server 2026-10-132026-10-14
CVE-2026-70267
Inclusion of functionality from untrusted control sphere in Microsoft Office Sha...
high 7.2 —Microsoft / sharepoint server 2026-10-132026-10-14
CVE-2026-70266
Improper neutralization of special elements used in an sql command ('sql injecti...
high 8.8 —Microsoft / sharepoint server 2026-10-132026-10-14
CVE-2026-70251
Server-side request forgery (ssrf) in Microsoft Office SharePoint allows an auth...
high 7.5 —Microsoft / sharepoint server 2026-10-132026-10-14
CVE-2026-70246
Incorrect authorization in Microsoft Office SharePoint allows an authorized atta...
high 8.8 —Microsoft / sharepoint server 2026-10-132026-10-14
CVE-2026-70202
Server-side request forgery (ssrf) in Microsoft Office SharePoint allows an auth...
high 7.5 —Microsoft / sharepoint server 2026-10-132026-10-14
CVE-2026-88166
Integer overflow or wraparound in Microsoft Office SharePoint allows an authoriz...
high 8.8 —Microsoft / sharepoint server 2026-10-132026-10-14
CVE-2026-88163
Integer overflow or wraparound in Microsoft Office SharePoint allows an authoriz...
high 8.8 —Microsoft / sharepoint server 2026-10-132026-10-14
CVE-2026-88155
Heap-based buffer overflow in Microsoft Office SharePoint allows an authorized a...
high 8.8 —Microsoft / sharepoint server 2026-10-132026-10-14
CVE-2026-85900
Deserialization of untrusted data in Microsoft Office SharePoint allows an autho...
high 8.8 —Microsoft / sharepoint server 2026-10-132026-10-14
CVE-2026-88206
Server-side request forgery (ssrf) in Microsoft Office SharePoint allows an auth...
high 7.5 —Microsoft / sharepoint server 2026-10-132026-10-14
CVE-2026-88200
Privilege context switching error in Microsoft Office SharePoint allows an autho...
high 8.8 —Microsoft / sharepoint server 2026-10-132026-10-14
CVE-2026-88198
Missing authorization in Microsoft Office SharePoint allows an authorized attack...
high 8.8 —Microsoft / sharepoint server 2026-10-132026-10-14
CVE-2026-62906
Improper neutralization of special elements in data query logic in Microsoft Dis...
high 7.4 —Microsoft / discovery studio 2026-09-032026-10-14
CVE-2026-97009
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized atta...
high 7.8 —Microsoft / 365 apps 2026-10-132026-10-14
CVE-2026-78446
Use after free in Windows Distributed File System (DFS) allows an authorized att...
high 7.5 —Microsoft / windows 10 1607 2026-09-082026-10-07
CVE-2026-69436
Heap-based buffer overflow in Windows State Repository Service allows an authori...
high 7.8 —Microsoft / windows 10 1809 2026-09-082026-10-07
CVE-2026-65772
Deserialization of untrusted data in Microsoft Dynamics 365 allows an authorized...
high 8.8 —Microsoft / dynamics 365 2026-09-082026-10-07
CVE-2026-57099
Allocation of resources without limits or throttling in ASP.NET Core allows an u...
high 7.5 —Microsoft / asp.net core odata 2026-09-082026-10-05
CVE-2026-55007
Double free in Microsoft Exchange Server allows an unauthorized attacker to exec...
high 8.1 —Microsoft / exchange server 2026-09-082026-10-05
CVE-2026-47297
Deserialization of untrusted data in SQL Server allows an unauthorized attacker...
high 8.1 —Microsoft / sql server 2019 2026-09-082026-10-02
CVE-2026-58600
Heap-based buffer overflow in Microsoft Windows Codecs Library allows an unautho...
high 7.8 —Microsoft / hevc video extensions 2026-09-082026-10-01
CVE-2026-58599
Heap-based buffer overflow in Microsoft Windows Codecs Library allows an unautho...
high 7.8 —Microsoft / hevc video extensions 2026-09-082026-10-01
CVE-2026-69594
Heap-based buffer overflow in Microsoft Local Security Authority Server (lsasrv)...
high 7.8 —Microsoft / windows 11 24h2 2026-09-082026-10-01
CVE-2026-69549
Out-of-bounds read in Virtual Hard Disk (VHD) Miniport Driver allows an authoriz...
high 7.0 —Microsoft / windows 10 1809 2026-09-082026-10-01
CVE-2026-69546
Use after free in Active Directory Domain Services allows an unauthorized attack...
high 8.1 —Microsoft / windows 10 1607 2026-09-082026-10-01
CVE-2026-69541
Heap-based buffer overflow in Virtual Hard Disk (VHD) Miniport Driver allows an...
high 7.8 —Microsoft / windows 10 1607 2026-09-082026-10-01
CVE-2026-69524
Use after free in Active Directory Domain Services allows an unauthorized attack...
high 8.1 —Microsoft / windows 10 1607 2026-09-082026-10-01
CVE-2026-70211
Out-of-bounds read in Windows Win32 Kernel Subsystem allows an authorized attack...
medium 5.5 —Microsoft / windows 10 1607 2026-10-132026-10-31
CVE-2026-85330
Incorrect authorization in Microsoft Edge for Android allows an unauthorized att...
medium 4.3 —Microsoft / edge 2026-10-292026-10-31
CVE-2026-88137
Files or directories accessible to external parties in WebDAV allows an authoriz...
medium 6.5 —Microsoft / windows 10 1607 2026-10-132026-10-31
CVE-2026-88158
Out-of-bounds read in Microsoft Digest Authentication allows an authorized attac...
medium 5.5 —Microsoft / windows 10 1607 2026-10-132026-10-31
CVE-2026-77911
Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to d...
medium 6.5 —Microsoft / 365 apps 2026-09-082026-10-30
CVE-2026-77491
Out-of-bounds read in Windows GDI allows an unauthorized attacker to disclose in...
medium 5.5 —Microsoft / windows 10 1607 2026-09-082026-10-30
CVE-2026-69609
Out-of-bounds read in Windows Win32K allows an authorized attacker to disclose i...
medium 5.5 —Microsoft / windows 10 1607 2026-09-082026-10-30
CVE-2026-69304
Improper handling of highly compressed data (data amplification) in ASP.NET Core...
medium 5.9 —Microsoft / asp.net core 2026-09-082026-10-30
CVE-2026-64918
Insufficiently protected credentials in Microsoft Office allows an unauthorized...
medium 6.5 —Microsoft / 365 apps 2026-09-082026-10-30
CVE-2026-58649
Origin validation error in .NET allows an unauthorized attacker to disclose info...
medium 6.5 —Microsoft / .net 2026-09-082026-10-30
CVE-2026-97782
Observable discrepancy in Microsoft Office SharePoint allows an authorized attac...
medium 6.8 —Microsoft / sharepoint server 2026-10-132026-10-30

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.