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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-2026-69586
Integer overflow or wraparound in Microsoft Windows PDF allows an unauthorized a...
critical 9.8 —Microsoft / windows 10 1607 2026-09-082026-09-21
CVE-2026-78509
Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized at...
critical 9.8 —Microsoft / 365 apps 2026-09-082026-09-17
CVE-2026-67631
Heap-based buffer overflow in SQL Server allows an unauthorized attacker to exec...
critical 9.8 —Microsoft / sql server 2017 2026-09-082026-09-17
CVE-2026-67636
Out-of-bounds read in SQL Server allows an unauthorized attacker to execute code...
critical 9.0 —Microsoft / sql server 2019 2026-09-082026-09-17
CVE-2026-67643
Heap-based buffer overflow in SQL Server allows an unauthorized attacker to exec...
critical 9.8 —Microsoft / sql server 2022 2026-09-082026-09-17
CVE-2026-67378
Untrusted pointer dereference in SQL Server allows an unauthorized attacker to e...
critical 9.0 —Microsoft / sql server 2019 2026-09-082026-09-17
CVE-2026-73010
Use after free in Windows Failover Cluster allows an unauthorized attacker to ex...
critical 9.8 —Microsoft / windows 10 1809 2026-09-082026-09-17
CVE-2026-66302
External control of file name or path in Skype for Business allows an unauthoriz...
critical 9.8 —Microsoft / skype for business server 2026-09-082026-09-16
CVE-2026-69910
Stack-based buffer overflow in Windows Hyper-V allows an unauthorized attacker t...
critical 9.8 —Microsoft / windows 10 1607 2026-09-082026-09-16
CVE-2026-81376
Incomplete comparison with missing factors in Visual Studio Code allows an unaut...
critical 9.6 —Microsoft / visual studio code 2026-09-082026-09-11
CVE-2026-80098
Improper verification of cryptographic signature in Copilot Studio allows an una...
critical 10.0 —Microsoft / copilot studio 2026-09-032026-09-08
CVE-2026-65818
Server-side request forgery (ssrf) in Power Automate allows an authorized attack...
critical 9.9 —Microsoft / power platform 2026-09-032026-09-08
CVE-2026-62916
Authentication bypass using an alternate path or channel in Microsoft Entra ID a...
critical 9.8 —Microsoft / entra id 2026-09-032026-09-08
CVE-2026-69275
Use after free in Kernel Streaming WOW Thunk Service Driver allows an authorized...
high 7.0 —Microsoft / windows 10 1607 2026-09-082026-09-30
CVE-2026-69277
Stack-based buffer overflow in Microsoft Local Security Authority Server (lsasrv...
high 7.8 —Microsoft / windows 10 1607 2026-09-082026-09-30
CVE-2026-69292
Double free in Remote Desktop Gateway Service allows an authorized attacker to e...
high 7.0 —Microsoft / windows 10 1607 2026-09-082026-09-30
CVE-2026-69272
Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attack...
high 7.1 —Microsoft / windows 10 1607 2026-09-082026-09-30
CVE-2026-69271
Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attack...
high 8.0 —Microsoft / windows 10 1607 2026-09-082026-09-30
CVE-2026-69269
Integer underflow (wrap or wraparound) in Microsoft Standard XPS allows an autho...
high 7.8 —Microsoft / windows 10 1607 2026-09-082026-09-30
CVE-2026-68897
Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attack...
high 7.0 —Microsoft / windows 10 1607 2026-09-082026-09-30
CVE-2026-68892
Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attack...
high 7.8 —Microsoft / windows 10 1607 2026-09-082026-09-30
CVE-2026-68890
Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attack...
high 7.8 —Microsoft / windows 10 1607 2026-09-082026-09-30
CVE-2026-68889
Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attack...
high 7.1 —Microsoft / windows 10 1607 2026-09-082026-09-30
CVE-2026-81352
Heap-based buffer overflow in Microsoft Windows Codecs Library allows an unautho...
high 8.8 —Microsoft / web media extensions 2026-09-082026-09-30
CVE-2026-62813
Use after free in Active Directory Domain Services allows an authorized attacker...
high 7.5 —Microsoft / windows 10 1607 2026-09-082026-09-30
CVE-2026-62810
Heap-based buffer overflow in Active Directory Certificate Services (AD CS) allo...
high 7.8 —Microsoft / windows 10 1607 2026-09-082026-09-30
CVE-2026-69313
Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attack...
high 7.1 —Microsoft / windows 10 1607 2026-09-082026-09-30
CVE-2026-69325
Heap-based buffer overflow in Microsoft JScript allows an unauthorized attacker...
high 8.1 —Microsoft / windows 10 1607 2026-09-082026-09-30
CVE-2026-69329
Out-of-bounds read in BranchCache allows an unauthorized attacker to deny servic...
high 7.5 —Microsoft / windows 10 1607 2026-09-082026-09-30
CVE-2026-69336
Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attack...
high 7.1 —Microsoft / windows 10 1607 2026-09-082026-09-30
CVE-2026-69338
Use after free in Remote Desktop Gateway Service allows an authorized attacker t...
high 7.1 —Microsoft / windows 10 1607 2026-09-082026-09-30
CVE-2026-69355
External control of file name or path in Microsoft Exchange Server allows an aut...
high 8.8 —Microsoft / exchange server 2026-09-082026-09-30
CVE-2026-69358
Use of uninitialized resource in Remote Desktop Client allows an authorized atta...
high 7.1 —Microsoft / windows 10 1607 2026-09-082026-09-30
CVE-2026-69360
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attac...
high 8.8 —Microsoft / windows 10 1607 2026-09-082026-09-29
CVE-2026-69359
Heap-based buffer overflow in Active Directory Domain Services allows an authori...
high 7.8 —Microsoft / windows 10 1607 2026-09-082026-09-29
CVE-2026-69805
External control of file name or path in .NET allows an unauthorized attacker to...
high 8.1 —Microsoft / microsoft.diagnostics.runtime 2026-09-082026-09-29
CVE-2026-69854
Improper authentication in Spring Cloud Azure allows an unauthorized attacker to...
high 8.1 —Microsoft / spring cloud 2026-09-082026-09-29
CVE-2026-70351
Integer overflow or wraparound in Microsoft WebP Image Extension allows an unaut...
high 8.8 —Microsoft / webp image extension 2026-09-082026-09-29
CVE-2026-77504
Double free in Microsoft Office Word allows an unauthorized attacker to execute...
high 8.8 —Microsoft / windows 10 1607 2026-09-082026-09-29
CVE-2026-77897
Relative path traversal in Power Automate allows an authorized attacker to eleva...
high 7.0 —Microsoft / power automate for desktop 2026-09-082026-09-29

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.