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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-2026-69290
Stack-based buffer overflow in Windows Storage Spaces Controller allows an autho...
high 7.8 —Microsoft / windows 10 1607 2026-09-082026-09-24
CVE-2026-69283
Heap-based buffer overflow in Windows CD-ROM Driver allows an authorized attacke...
high 7.8 —Microsoft / windows 10 1607 2026-09-082026-09-24
CVE-2026-69284
Heap-based buffer overflow in Windows DCOM Server allows an authorized attacker...
high 7.8 —Microsoft / windows 10 1607 2026-09-082026-09-24
CVE-2026-69270
Heap-based buffer overflow in Windows USB Audio Class driver (usbaudio.sys) allo...
high 7.8 —Microsoft / windows 10 1607 2026-09-082026-09-24
CVE-2026-69274
Use after free in Windows Win32K allows an authorized attacker to elevate privil...
high 7.1 —Microsoft / windows 10 1607 2026-09-082026-09-24
CVE-2026-69265
Out-of-bounds read in Windows NTFS allows an authorized attacker to elevate priv...
high 7.8 —Microsoft / windows 10 1607 2026-09-082026-09-24
CVE-2026-69266
Integer overflow or wraparound in Windows DHCP Server allows an unauthorized att...
high 8.8 —Microsoft / windows 10 1607 2026-09-082026-09-24
CVE-2026-68893
Use after free in Windows Remote Desktop Licensing Service allows an authorized...
high 7.1 —Microsoft / windows 10 1607 2026-09-082026-09-24
CVE-2026-68894
Heap-based buffer overflow in Windows Error Reporting allows an authorized attac...
high 8.0 —Microsoft / windows 10 1607 2026-09-082026-09-24
CVE-2026-68887
Out-of-bounds read in Windows Message Queuing Queue Manager allows an unauthoriz...
high 7.5 —Microsoft / windows 10 1607 2026-09-082026-09-24
CVE-2026-68878
Stack-based buffer overflow in Windows Fast FAT Driver allows an authorized atta...
high 8.0 —Microsoft / windows 10 1607 2026-09-082026-09-24
CVE-2026-68880
Heap-based buffer overflow in Windows Win32K allows an authorized attacker to el...
high 8.0 —Microsoft / windows 10 1607 2026-09-082026-09-24
CVE-2026-68875
Buffer over-read in Windows NTFS allows an authorized attacker to execute code l...
high 7.8 —Microsoft / windows 10 1607 2026-09-082026-09-24
CVE-2026-68876
Heap-based buffer overflow in Windows Program Compatibility Assistant Service al...
high 8.0 —Microsoft / windows 10 1607 2026-09-082026-09-24
CVE-2026-68845
Heap-based buffer overflow in Windows Program Compatibility Assistant Service al...
high 7.8 —Microsoft / windows 10 1607 2026-09-082026-09-24
CVE-2026-68846
Use after free in Windows Kernel allows an authorized attacker to elevate privil...
high 7.1 —Microsoft / windows 10 1607 2026-09-082026-09-24
CVE-2026-68848
Heap-based buffer overflow in Windows Print Spooler Components allows an authori...
high 7.8 —Microsoft / windows 10 1607 2026-09-082026-09-24
CVE-2026-68840
Concurrent execution using shared resource with improper synchronization ('race...
high 7.0 —Microsoft / windows 10 1607 2026-09-082026-09-24
CVE-2026-68841
Heap-based buffer overflow in Windows NTFS allows an authorized attacker to elev...
high 7.8 —Microsoft / windows 10 1607 2026-09-082026-09-24
CVE-2026-68832
Integer overflow or wraparound in Windows NTFS allows an authorized attacker to...
high 7.8 —Microsoft / windows 10 1607 2026-09-082026-09-24
CVE-2026-68834
Stack-based buffer overflow in Windows NTFS allows an authorized attacker to ele...
high 8.0 —Microsoft / windows 10 1607 2026-09-082026-09-24
CVE-2026-68835
Use after free in Windows Print Spooler Components allows an authorized attacker...
high 7.1 —Microsoft / windows 10 1607 2026-09-082026-09-24
CVE-2026-68838
Stack-based buffer overflow in Windows NTFS allows an authorized attacker to ele...
high 8.0 —Microsoft / windows 10 1607 2026-09-082026-09-24
CVE-2026-68827
Integer underflow (wrap or wraparound) in Windows GDI+ allows an authorized atta...
high 8.0 —Microsoft / windows 10 1607 2026-09-082026-09-24
CVE-2026-62694
Use after free in Windows Installer allows an authorized attacker to elevate pri...
high 7.0 —Microsoft / windows 10 1607 2026-09-082026-09-24
CVE-2026-62706
Out-of-bounds read in Microsoft Windows Media Foundation allows an unauthorized...
high 8.8 —Microsoft / windows 10 1607 2026-09-082026-09-24
CVE-2026-62759
Authentication bypass by spoofing in Windows Netlogon allows an unauthorized att...
high 7.5 —Microsoft / windows 10 1607 2026-09-082026-09-24
CVE-2026-50349
Concurrent execution using shared resource with improper synchronization ('race...
high 7.0 —Microsoft / windows 10 1607 2026-09-082026-09-24
CVE-2026-88097
Use after free in Microsoft Edge (Chromium-based) allows an unauthorized attacke...
high 7.8 —Microsoft / edge chromium 2026-09-182026-09-24
CVE-2026-70579
Out-of-bounds read in Windows Mobile Broadband allows an unauthorized attacker t...
high 7.5 —Microsoft / windows 10 21h2 2026-09-082026-09-24
CVE-2026-70578
Heap-based buffer overflow in Windows Credential Guard allows an authorized atta...
high 7.0 —Microsoft / windows 10 21h2 2026-09-082026-09-24
CVE-2026-70577
Use after free in Windows Modern Device Management (MDM) allows an authorized at...
high 7.0 —Microsoft / windows 10 1809 2026-09-082026-09-24
CVE-2026-69397
Use after free in OpenSSH for Windows allows an unauthorized attacker to execute...
high 7.5 —Microsoft / windows 10 1809 2026-09-082026-09-24
CVE-2026-69398
Concurrent execution using shared resource with improper synchronization ('race...
high 7.0 —Microsoft / windows 10 1809 2026-09-082026-09-24
CVE-2026-69429
Heap-based buffer overflow in Windows IKE Extension allows an authorized attacke...
high 7.5 —Microsoft / windows 10 1809 2026-09-082026-09-24
CVE-2026-69430
Use after free in Windows Embedded Mode Service allows an authorized attacker to...
high 7.0 —Microsoft / windows 10 1607 2026-09-082026-09-24
CVE-2026-69809
Missing release of memory after effective lifetime in Active Directory Domain Se...
high 7.5 —Microsoft / windows 11 23h2 2026-09-082026-09-24
CVE-2026-69801
Heap-based buffer overflow in Windows Audio Service allows an authorized attacke...
high 7.8 —Microsoft / windows 10 1809 2026-09-082026-09-24
CVE-2026-69799
Concurrent execution using shared resource with improper synchronization ('race...
high 7.8 —Microsoft / windows 10 21h2 2026-09-082026-09-24
CVE-2026-69563
Heap-based buffer overflow in Windows Program Compatibility Assistant Service al...
high 7.0 —Microsoft / windows 10 1607 2026-09-082026-09-24

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.