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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
17,457
Critical
1,337
High
5,864
Medium
6,249
Low
648
Severity not reported
3,359
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-2026-96847
Untrusted pointer dereference in WebDAV allows an authorized attacker to elevate...
high 7.8 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-96323
Use after free in Windows Update allows an authorized attacker to elevate privil...
high 7.0 —Microsoft / windows 10 21h2 2026-10-132026-10-16
CVE-2026-96324
Use after free in Microsoft Windows Search Component allows an authorized attack...
high 7.8 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-96322
Use after free in Windows Remote Desktop Protocol allows an authorized attacker...
high 7.0 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-96317
Use after free in Windows Kernel allows an authorized attacker to elevate privil...
high 7.8 —Microsoft / windows 10 1809 2026-10-132026-10-16
CVE-2026-96318
Heap-based buffer overflow in Windows Resume allows an authorized attacker to el...
high 7.8 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-96319
Use after free in Windows USB Print Driver allows an authorized attacker to elev...
high 7.0 —Microsoft / windows 10 21h2 2026-10-132026-10-16
CVE-2026-96308
Use after free in Windows Installer allows an authorized attacker to elevate pri...
high 7.8 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-96309
Use after free in Windows Subsystem for Linux allows an authorized attacker to e...
high 7.8 —Microsoft / windows 10 21h2 2026-10-132026-10-16
CVE-2026-96310
Use after free in Windows USB Print Driver allows an authorized attacker to elev...
high 7.0 —Microsoft / windows 10 21h2 2026-10-132026-10-16
CVE-2026-96312
Heap-based buffer overflow in Windows Kernel allows an authorized attacker to el...
high 7.8 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-96313
Missing authentication for critical function in Windows Push Notifications allow...
high 7.0 —Microsoft / windows 10 1809 2026-10-132026-10-16
CVE-2026-96302
Use after free in Windows Installer allows an authorized attacker to elevate pri...
high 7.0 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-96304
Use after free in Windows USB Print Driver allows an authorized attacker to elev...
high 7.0 —Microsoft / windows 10 21h2 2026-10-132026-10-16
CVE-2026-96305
Use after free in Windows Installer allows an authorized attacker to elevate pri...
high 7.0 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-96306
Out-of-bounds read in Windows Sysmain Service allows an authorized attacker to e...
high 7.8 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-96307
Use after free in Windows Installer allows an authorized attacker to elevate pri...
high 7.0 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-96250
Use after free in Windows USB Print Driver allows an authorized attacker to elev...
high 7.0 —Microsoft / windows 10 21h2 2026-10-132026-10-16
CVE-2026-96251
Reliance on untrusted inputs in a security decision in Microsoft PowerShell allo...
high 8.8 —Microsoft / powershell 2026-10-132026-10-22
CVE-2026-96253
Use after free in Windows USB Print Driver allows an authorized attacker to elev...
high 7.0 —Microsoft / windows 10 21h2 2026-10-132026-10-16
CVE-2026-96254
Use after free in Windows USB Print Driver allows an authorized attacker to elev...
high 7.0 —Microsoft / windows 10 21h2 2026-10-132026-10-16
CVE-2026-96301
Use after free in Windows USB Print Driver allows an authorized attacker to elev...
high 7.0 —Microsoft / windows 10 21h2 2026-10-132026-10-16
CVE-2026-96245
Out-of-bounds read in Windows Routing and Remote Access Service (RRAS) allows an...
high 7.5 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-96246
Out-of-bounds read in Network Policy Server (NPS) allows an unauthorized attacke...
high 7.5 —Microsoft / windows 10 1607 2026-10-132026-10-20
CVE-2026-96248
Stack-based buffer overflow in Windows Host Guardian Service allows an unauthori...
high 7.5 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-96249
Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker t...
high 7.8 —Microsoft / windows 11 24h2 2026-10-132026-10-16
CVE-2026-96233
Out-of-bounds write in ASP.NET Core allows an unauthorized attacker to deny serv...
high 7.5 —— 2026-10-132026-10-22
CVE-2026-96235
Out-of-bounds write in .NET allows an unauthorized attacker to execute code over...
high 8.8 —— 2026-10-132026-10-22
CVE-2026-96236
Allocation of resources without limits or throttling in ASP.NET Core allows an u...
high 7.5 —— 2026-10-132026-10-13
CVE-2026-96237
Inclusion of functionality from untrusted control sphere in .NET allows an unaut...
high 7.5 —— 2026-10-132026-10-22
CVE-2026-96243
Improper link resolution before file access ('link following') in Windows Wallet...
high 7.8 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-96244
Use after free in Windows Internal System User Profile allows an authorized atta...
high 7.8 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-96222
Improper certificate validation in Active Directory Federation Services (AD FS)...
high 7.4 —Microsoft / windows 10 1607 2026-10-132026-10-22
CVE-2026-96223
Use after free in Windows Hyper-V allows an authorized attacker to elevate privi...
high 7.8 —Microsoft / windows 11 24h2 2026-10-132026-10-16
CVE-2026-96224
Out-of-bounds write in .NET allows an unauthorized attacker to execute code over...
high 8.8 —— 2026-10-132026-10-22
CVE-2026-96225
Improper link resolution before file access ('link following') in .NET allows an...
high 7.8 —— 2026-10-132026-10-22
CVE-2026-96230
Improper neutralization of input during web page generation ('cross-site scripti...
high 8.8 —— 2026-10-132026-10-22
CVE-2026-96231
Improper link resolution before file access ('link following') in .NET allows an...
high 7.8 —— 2026-10-132026-10-22
CVE-2026-96232
Out-of-bounds read in .NET allows an unauthorized attacker to disclose informati...
high 7.5 —— 2026-10-132026-10-22
CVE-2026-96215
Concurrent execution using shared resource with improper synchronization ('race...
high 7.0 —Microsoft / windows 11 24h2 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.