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October 2026 CVE archive

Records last modified in NIST NVD between Oct 1 and Oct 29, 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
22,209
Critical
3,102
High
7,090
Medium
6,615
Low
674
Severity not reported
4,728
In CISA KEV
188

Most affected vendors (by CPE data where available): microsoft (1176), google (780), ibm (323), mozilla (182), oracle (154), adobe (137), linux (126), apache (116), broadcom (113), fabian (98)

CVESeverityCVSSKEVVendor / productPublishedModified
CVE-2026-83567
Out-of-bounds read in Windows NTFS allows an authorized attacker to elevate priv...
high 7.8 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-83566
Use after free in Windows Win32K - ICOMP allows an authorized attacker to elevat...
high 7.0 —Microsoft / windows 11 24h2 2026-10-132026-10-28
CVE-2026-88152
Use after free in Windows Background Intelligent Transfer Service (BITS) allows...
high 7.8 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-78459
Heap-based buffer overflow in Windows Internet Information Services allows an au...
high 7.8 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-83511
Weak authentication in Active Directory Federation Services (AD FS) allows an un...
high 7.4 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-83506
Untrusted search path in Servicing Stack Updates allows an authorized attacker t...
high 7.8 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-77496
Heap-based buffer overflow in Windows Imaging Component allows an unauthorized a...
high 8.8 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-72969
Use after free in Windows Program Compatibility Assistant Service allows an auth...
high 7.0 —Microsoft / windows 11 23h2 2026-10-132026-10-28
CVE-2026-85339
Remote Code Execution in Windows Routing and Remote Access Service (RRAS) allows...
high 8.8 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-72968
Use after free in Windows Program Compatibility Assistant Service allows an auth...
high 7.0 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-85341
Heap-based buffer overflow in Windows USB Video Driver allows an authorized atta...
high 7.8 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-72955
Use after free in Windows Application Compatibility Cache allows an authorized a...
high 7.0 —Microsoft / windows 11 23h2 2026-10-132026-10-28
CVE-2026-85342
Use after free in Windows Device Association Service allows an authorized attack...
high 7.0 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-72934
Use after free in Windows Program Compatibility Assistant Service allows an auth...
high 7.0 —Microsoft / windows 11 23h2 2026-10-132026-10-28
CVE-2026-85343
Improper link resolution before file access ('link following') in Windows Hyper-...
high 7.8 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-83510
Time-of-check time-of-use (toctou) race condition in Windows Setup Files Cleanup...
high 7.0 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-85352
Use after free in Windows Device Association Service allows an authorized attack...
high 7.0 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-83509
Untrusted search path in Windows Setup Files Cleanup allows an authorized attack...
high 7.0 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-85353
Out-of-bounds read in Windows Print Spooler Components allows an unauthorized at...
high 7.5 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-83505
Time-of-check time-of-use (toctou) race condition in Windows Setup Files Cleanup...
high 7.0 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-85354
Use after free in Windows Error Reporting allows an authorized attacker to eleva...
high 7.0 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-73027
External control of system or configuration setting in Windows Setup Files Clean...
high 7.8 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-85355
Inclusion of functionality from untrusted control sphere in Windows Common Log F...
high 7.0 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-83499
Insufficient granularity of access control in Windows Server Update Service allo...
high 7.8 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-85356
Out-of-bounds read in Windows Volume Manager Extension Driver allows an authoriz...
high 7.8 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-81969
Insufficient granularity of access control in Windows Server Update Service allo...
high 7.8 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-83508
Out-of-bounds read in Windows NTFS allows an authorized attacker to elevate priv...
high 7.8 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-81971
Concurrent execution using shared resource with improper synchronization ('race...
high 7.0 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-71347
Concurrent execution using shared resource with improper synchronization ('race...
high 7.0 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-70580
Missing authentication for critical function in Windows Credential Guard allows...
high 7.8 —Microsoft / windows 10 1809 2026-10-132026-10-28
CVE-2026-70566
Null pointer dereference in Windows Schannel allows an authorized attacker to el...
high 7.8 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-70299
Improper access control in Windows Bind Filter Driver allows an authorized attac...
high 8.8 —Microsoft / windows 11 23h2 2026-10-132026-10-28
CVE-2026-70286
Heap-based buffer overflow in Windows Win32K - GRFX allows an authorized attacke...
high 7.8 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-85357
Concurrent execution using shared resource with improper synchronization ('race...
high 7.0 —Microsoft / windows 11 23h2 2026-10-132026-10-28
CVE-2026-70278
Heap-based buffer overflow in Microsoft Windows Media Foundation allows an autho...
high 7.8 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-85358
Heap-based buffer overflow in Windows Installer allows an authorized attacker to...
high 7.8 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-85359
Improper control of generation of code ('code injection') in Windows Performance...
high 7.8 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-70272
Use after free in Windows Installer allows an authorized attacker to elevate pri...
high 7.0 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-85361
Use after free in Windows Installer allows an authorized attacker to elevate pri...
high 7.0 —Microsoft / windows 10 1607 2026-10-132026-10-28
CVE-2026-70258
Heap-based buffer overflow in Microsoft Windows Media Foundation allows an unaut...
high 8.8 —Microsoft / windows 10 1607 2026-10-132026-10-28

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.