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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-2025-64672
Improper neutralization of input during web page generation ('cross-site scripti...
critical 9.0 —Microsoft / sharepoint server 2025-12-092026-10-14
CVE-2026-70300
Untrusted pointer dereference in Microsoft Office Word allows an unauthorized at...
critical 9.8 —Microsoft / 365 apps 2026-10-132026-10-14
CVE-2026-45495
Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
critical 9.8 —Microsoft / edge chromium 2026-05-182026-10-14
CVE-2026-83711
Authorization bypass through user-controlled key in Microsoft Azure Active Direc...
critical 10.0 —Microsoft / azure active directory b2c 2026-09-032026-10-14
CVE-2026-70352
Missing authentication for critical function in Azure AI Language allows an unau...
critical 10.0 —Microsoft / azure ai language authoring 2026-09-032026-10-14
CVE-2025-59247
Azure PlayFab Elevation of Privilege Vulnerability
critical 9.8 —Microsoft / azure playfab 2025-10-092026-10-08
CVE-2025-59273
Improper access control in Azure Event Grid allows an unauthorized attacker to e...
critical 9.8 —Microsoft / azure event grid 2025-10-232026-10-08
CVE-2025-59503
Server-side request forgery (ssrf) in Azure Compute Gallery allows an unauthoriz...
critical 9.8 —Microsoft / azure compute resource provider 2025-10-232026-10-08
CVE-2026-65669
Improper neutralization of special elements in output used by a downstream compo...
critical 9.6 —Microsoft / sql server management studio 2026-09-082026-10-07
CVE-2026-62874
Insufficient verification of data authenticity in Azure Billing allows an unauth...
critical 9.8 —Microsoft / azure billing 2026-09-182026-10-07
CVE-2026-85908
Heap-based buffer overflow in Windows Win32K - GRFX allows an authorized attacke...
high 7.8 —Microsoft / windows 10 1607 2026-10-132026-10-31
CVE-2026-83651
Out-of-bounds read in Windows GDI allows an unauthorized attacker to disclose in...
high 7.5 —Microsoft / windows 10 1607 2026-10-132026-10-31
CVE-2026-70271
Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker t...
high 7.0 —Microsoft / windows 10 1607 2026-10-132026-10-31
CVE-2026-70106
Heap-based buffer overflow in Windows Kernel allows an authorized attacker to el...
high 7.8 —Microsoft / windows 10 1607 2026-10-132026-10-31
CVE-2026-96192
Use after free in Microsoft Edge for iOS allows an unauthorized attacker to exec...
high 8.8 —Microsoft / edge 2026-10-292026-10-31
CVE-2026-85893
Use after free in Microsoft Edge (Chromium-based) allows an unauthorized attacke...
high 8.8 —Microsoft / edge chromium 2026-09-152026-10-30
CVE-2026-81396
Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized att...
high 7.8 —Microsoft / 365 apps 2026-09-082026-10-30
CVE-2026-78524
Out-of-bounds write in Microsoft Office allows an unauthorized attacker to execu...
high 8.8 —Microsoft / 365 apps 2026-09-082026-10-30
CVE-2026-73013
Heap-based buffer overflow in Windows Imaging Component allows an unauthorized a...
high 8.8 —Microsoft / windows 10 1607 2026-09-082026-10-30
CVE-2026-71328
Heap-based buffer overflow in Visual Studio allows an unauthorized attacker to e...
high 8.8 —Microsoft / visual studio 2022 2026-09-082026-10-30
CVE-2026-70125
Microsoft Office Outlook Remote Code Execution Vulnerability
high 7.8 —Microsoft / 365 apps 2026-09-232026-10-30
CVE-2026-69806
Exposure of sensitive information to an unauthorized actor in .NET allows an aut...
high 7.0 —Microsoft / .net 2026-09-082026-10-30
CVE-2026-69767
Use after free in Microsoft Office PowerPoint allows an unauthorized attacker to...
high 8.8 —Microsoft / 365 apps 2026-09-082026-10-30
CVE-2026-69610
Buffer over-read in Windows Win32K allows an authorized attacker to elevate priv...
high 7.0 —Microsoft / windows 10 1607 2026-09-082026-10-30
CVE-2026-69576
Use after free in Graphic Fonts allows an authorized attacker to elevate privile...
high 7.8 —Microsoft / windows 10 1607 2026-09-082026-10-30
CVE-2026-69556
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attac...
high 8.8 —Microsoft / 365 apps 2026-09-082026-10-30
CVE-2026-69499
Integer overflow or wraparound in Windows Imaging Component allows an unauthoriz...
high 8.8 —Microsoft / windows 10 1607 2026-09-082026-10-30
CVE-2026-69439
Heap-based buffer overflow in .NET and Visual Studio allows an unauthorized atta...
high 8.8 —Microsoft / .net 2026-09-082026-10-30
CVE-2026-68880
Heap-based buffer overflow in Windows Win32K allows an authorized attacker to el...
high 8.0 —Microsoft / windows 10 1607 2026-09-082026-10-30
CVE-2026-62804
External control of file name or path in Microsoft Office Word allows an unautho...
high 7.8 —Microsoft / 365 apps 2026-09-082026-10-30
CVE-2026-83699
Stack-based buffer overflow in Windows Client-Side Caching (CSC) Service allows...
high 7.8 —Microsoft / windows 10 1607 2026-10-132026-10-30
CVE-2026-83698
Heap-based buffer overflow in Windows Client-Side Caching (CSC) Service allows a...
high 7.8 —Microsoft / windows 10 1607 2026-10-132026-10-30
CVE-2026-83696
Use after free in Windows Cloud Files Mini Filter Driver allows an authorized at...
high 7.0 —Microsoft / windows 10 1809 2026-10-132026-10-30
CVE-2026-83722
Use after free in Microsoft Local Security Authority Server (lsasrv) allows an a...
high 7.0 —Microsoft / windows 10 1607 2026-10-132026-10-30
CVE-2026-69966
Integer overflow or wraparound in Microsoft Streaming Service allows an authoriz...
high 7.8 —Microsoft / windows 10 1607 2026-10-132026-10-29
CVE-2026-70198
Use after free in Windows Push Notifications allows an authorized attacker to el...
high 7.0 —Microsoft / windows 10 1809 2026-10-132026-10-29
CVE-2026-83666
Concurrent execution using shared resource with improper synchronization ('race...
high 7.0 —Microsoft / windows 10 1607 2026-10-132026-10-29
CVE-2026-83670
Out-of-bounds read in Function Discovery Service (fdwsd.dll) allows an unauthori...
high 7.5 —Microsoft / windows 10 1607 2026-10-132026-10-29
CVE-2026-83674
Weak authentication in Active Directory Federation Services (AD FS) allows an un...
high 8.1 —Microsoft / windows 10 1607 2026-10-132026-10-29
CVE-2026-83688
Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attac...
high 8.8 —Microsoft / windows 10 1607 2026-10-132026-10-29

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.