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September 2026 CVE archive

Records last modified in NIST NVD between Sep 1 and Sep 30, 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 September 2026Materially updated (Critical / KEV)
Total records
11,364
Critical
1,230
High
4,374
Medium
4,126
Low
462
Severity not reported
1,172
In CISA KEV
59

Most affected vendors (by CPE data where available): microsoft (964), google (608), oracle (274), apple (244), adobe (197), dell (138), ibm (104), arubanetworks (101), mongodb (64), apache (56)

CVESeverityCVSSKEVVendor / productPublishedModified
CVE-2026-69759
Stack-based buffer overflow in Microsoft Office Word allows an unauthorized atta...
high 8.8 —Microsoft / 365 apps 2026-09-082026-09-17
CVE-2026-69767
Use after free in Microsoft Office PowerPoint allows an unauthorized attacker to...
high 8.8 —Microsoft / 365 apps 2026-09-082026-09-17
CVE-2026-69739
Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclo...
high 7.5 —Microsoft / 365 apps 2026-09-082026-09-17
CVE-2026-69722
Stack-based buffer overflow in Microsoft Office Word allows an unauthorized atta...
high 8.8 —Microsoft / 365 apps 2026-09-082026-09-17
CVE-2026-69686
Stack-based buffer overflow in Microsoft Office Word allows an unauthorized atta...
high 8.8 —Microsoft / 365 apps 2026-09-082026-09-17
CVE-2026-69671
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attac...
high 8.8 —Microsoft / 365 apps 2026-09-082026-09-17
CVE-2026-69678
Use after free in Microsoft Office PowerPoint allows an unauthorized attacker to...
high 8.8 —Microsoft / 365 apps 2026-09-082026-09-17
CVE-2026-69632
Use after free in Microsoft Office allows an unauthorized attacker to execute co...
high 8.8 —Microsoft / 365 apps 2026-09-082026-09-17
CVE-2026-73003
Use after free in Windows Modern Device Management (MDM) allows an authorized at...
high 7.0 —Microsoft / windows 10 1809 2026-09-082026-09-17
CVE-2026-73005
Use after free in Windows Authentication Methods allows an authorized attacker t...
high 7.0 —Microsoft / windows 10 1607 2026-09-082026-09-17
CVE-2026-72963
Use after free in Windows Modern Execution Server allows an authorized attacker...
high 7.0 —Microsoft / windows 10 1607 2026-09-082026-09-17
CVE-2026-81353
Heap-based buffer overflow in Microsoft Windows Codecs Library allows an unautho...
high 7.8 —Microsoft / heif image extension 2026-09-082026-09-17
CVE-2026-56172
Use after free in Windows VHD miniport driver allows an authorized attacker to e...
high 7.8 —Microsoft / windows 10 1809 2026-09-082026-09-17
CVE-2026-56177
Use after free in Windows Server allows an authorized attacker to elevate privil...
high 7.8 —Microsoft / windows 10 1607 2026-09-082026-09-17
CVE-2026-62697
Use after free in Windows Push Notifications allows an authorized attacker to el...
high 7.8 —Microsoft / windows 10 21h2 2026-09-082026-09-17
CVE-2026-68824
Concurrent execution using shared resource with improper synchronization ('race...
high 7.0 —Microsoft / windows 10 21h2 2026-09-082026-09-17
CVE-2026-68825
Use after free in Windows Bind Filter Driver allows an authorized attacker to el...
high 7.0 —Microsoft / windows 11 23h2 2026-09-082026-09-17
CVE-2026-68837
Use after free in Windows File History Service allows an authorized attacker to...
high 7.0 —Microsoft / windows 10 1607 2026-09-082026-09-17
CVE-2026-68847
Use after free in Windows Connected User Experiences and Telemetry allows an aut...
high 7.0 —Microsoft / windows 10 21h2 2026-09-082026-09-17
CVE-2026-69314
Use after free in Windows Device Association Broker service allows an authorized...
high 7.1 —Microsoft / windows 10 1607 2026-09-082026-09-17
CVE-2026-69333
Use after free in Windows Win32K allows an authorized attacker to elevate privil...
high 7.0 —Microsoft / windows 11 24h2 2026-09-082026-09-17
CVE-2026-69348
Heap-based buffer overflow in Windows Win32K allows an authorized attacker to el...
high 7.8 —Microsoft / windows 11 24h2 2026-09-082026-09-17
CVE-2026-69814
Use after free in Windows Credential Providers allows an authorized attacker to...
high 7.0 —Microsoft / windows 11 23h2 2026-09-082026-09-16
CVE-2026-69816
Use after free in Windows Accounts Control allows an authorized attacker to elev...
high 7.0 —Microsoft / windows 10 1607 2026-09-082026-09-16
CVE-2026-69818
Use after free in Windows Win32K allows an authorized attacker to elevate privil...
high 7.0 —Microsoft / windows 11 24h2 2026-09-082026-09-16
CVE-2026-69822
Numeric truncation error in Windows Kerberos allows an authorized attacker to el...
high 7.8 —Microsoft / windows 10 1809 2026-09-082026-09-16
CVE-2026-70567
Double free in Windows Display Enhancement Service allows an authorized attacker...
high 7.0 —Microsoft / windows 11 24h2 2026-09-082026-09-16
CVE-2026-70569
Out-of-bounds read in Windows Spaceport.sys allows an authorized attacker to ele...
high 7.8 —Microsoft / windows 11 23h2 2026-09-082026-09-16
CVE-2026-57098
Improper verification of cryptographic signature in Windows RDP Client allows an...
high 7.5 —Microsoft / remote desktop client 2026-09-082026-09-16
CVE-2026-78450
Use after free in Reliable Multicast Transport Driver (RMCAST) allows an unautho...
high 8.1 —Microsoft / windows 10 1809 2026-09-082026-09-16
CVE-2026-69646
Improper verification of cryptographic signature in Skype for Business allows an...
high 8.3 —Microsoft / skype for business server 2026-09-082026-09-16
CVE-2026-66307
Integer underflow (wrap or wraparound) in Skype for Business allows an unauthori...
high 7.5 —Microsoft / skype for business server 2026-09-082026-09-16
CVE-2026-66305
Use of client-side authentication in Skype for Business allows an authorized att...
high 7.1 —Microsoft / skype for business server 2026-09-082026-09-16
CVE-2026-66304
Server-side request forgery (ssrf) in Skype for Business allows an unauthorized...
high 7.5 —Microsoft / skype for business server 2026-09-082026-09-16
CVE-2026-69921
Heap-based buffer overflow in Windows Print Spooler Components allows an authori...
high 7.8 —Microsoft / windows 10 21h2 2026-09-082026-09-16
CVE-2026-69907
Improper handling of insufficient permissions or privileges in Windows Enterpris...
high 7.8 —Microsoft / windows 10 1607 2026-09-082026-09-16
CVE-2026-69900
Untrusted pointer dereference in Kernel Streaming WOW Thunk Service Driver allow...
high 7.8 —Microsoft / windows 10 21h2 2026-09-082026-09-16
CVE-2026-69896
Use after free in Windows Error Reporting allows an authorized attacker to eleva...
high 7.0 —Microsoft / windows 11 24h2 2026-09-082026-09-16
CVE-2026-69891
Use after free in Windows Media allows an authorized attacker to elevate privile...
high 7.0 —Microsoft / windows 10 1607 2026-09-082026-09-16
CVE-2026-69890
Use after free in Windows Virtual Trusted Platform Module allows an authorized a...
high 7.5 —Microsoft / windows 10 1809 2026-09-082026-09-16

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.