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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
17,481
Critical
1,390
High
6,087
Medium
6,446
Low
659
Severity not reported
2,899
In CISA KEV
21

Most affected vendors (by CPE data where available): microsoft (1359), google (759), oracle (376), apple (282), ibm (149), adobe (138), apache (73), imagemagick (72), broadcom (61), freerdp (60)

CVESeverityCVSSKEVVendor / productPublishedModified
CVE-2026-108449
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attac...
high 8.8 —Microsoft / 365 apps 2026-10-152026-10-19
CVE-2026-108450
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attac...
high 8.8 —Microsoft / 365 apps 2026-10-152026-10-19
CVE-2026-108451
Numeric truncation error in Microsoft Office Word allows an unauthorized attacke...
high 8.8 —Microsoft / 365 apps 2026-10-152026-10-19
CVE-2026-108452
Improper limitation of a pathname to a restricted directory ('path traversal') i...
high 8.8 —Microsoft / sharepoint server 2026-10-152026-10-19
CVE-2026-108437
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attac...
high 8.8 —Microsoft / 365 apps 2026-10-152026-10-20
CVE-2026-108439
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attac...
high 8.8 —Microsoft / 365 apps 2026-10-152026-10-20
CVE-2026-108440
Stack-based buffer overflow in Microsoft Office Word allows an unauthorized atta...
high 8.8 —Microsoft / 365 apps 2026-10-152026-10-20
CVE-2026-108441
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attac...
high 8.8 —Microsoft / 365 apps 2026-10-152026-10-20
CVE-2026-108442
Use after free in Microsoft Office Word allows an unauthorized attacker to execu...
high 8.8 —Microsoft / 365 apps 2026-10-152026-10-20
CVE-2026-108443
Off-by-one error in Microsoft Office Word allows an unauthorized attacker to exe...
high 8.8 —Microsoft / 365 apps 2026-10-152026-10-19
CVE-2026-108444
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker t...
high 8.8 —Microsoft / 365 apps 2026-10-152026-10-19
CVE-2026-108428
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attac...
high 8.8 —Microsoft / 365 apps 2026-10-152026-10-20
CVE-2026-108429
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attac...
high 8.8 —Microsoft / 365 apps 2026-10-152026-10-20
CVE-2026-108430
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attac...
high 8.8 —Microsoft / 365 apps 2026-10-152026-10-20
CVE-2026-108431
Stack-based buffer overflow in Microsoft Office Word allows an unauthorized atta...
high 8.8 —Microsoft / 365 apps 2026-10-152026-10-20
CVE-2026-108432
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attac...
high 8.8 —Microsoft / 365 apps 2026-10-152026-10-20
CVE-2026-108433
Reliance on untrusted inputs in a security decision in Microsoft Office Word all...
high 7.8 —Microsoft / 365 apps 2026-10-152026-10-20
CVE-2026-108426
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attac...
high 8.8 —Microsoft / 365 apps 2026-10-152026-10-20
CVE-2026-108427
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attac...
high 8.8 —Microsoft / 365 apps 2026-10-152026-10-20
CVE-2026-88164
Missing authorization in Microsoft Office SharePoint allows an authorized attack...
high 8.8 —Microsoft / sharepoint server 2026-10-142026-10-20
CVE-2026-96956
Stack-based buffer overflow in SQL Server allows an authorized attacker to eleva...
high 8.0 —Microsoft / sql server 2017 2026-10-132026-11-02
CVE-2026-94512
Heap-based buffer overflow in SQL Server allows an authorized attacker to execut...
high 8.8 —Microsoft / sql server 2017 2026-10-132026-11-02
CVE-2026-88088
Integer overflow or wraparound in SQL Server allows an authorized attacker to el...
high 7.0 —Microsoft / sql server 2019 2026-10-132026-11-02
CVE-2026-88082
Heap-based buffer overflow in SQL Server allows an authorized attacker to elevat...
high 7.0 —Microsoft / sql server 2019 2026-10-132026-11-02
CVE-2026-88083
Stack-based buffer overflow in SQL Server allows an unauthorized attacker to exe...
high 7.5 —Microsoft / sql server 2022 2026-10-132026-11-02
CVE-2026-85919
Heap-based buffer overflow in SQL Server allows an authorized attacker to elevat...
high 7.0 —Microsoft / sql server 2019 2026-10-132026-11-02
CVE-2026-85886
Heap-based buffer overflow in SQL Server allows an authorized attacker to execut...
high 8.5 —Microsoft / sql server 2017 2026-10-132026-11-02
CVE-2026-85876
Use after free in SQL Server allows an authorized attacker to elevate privileges...
high 7.0 —Microsoft / sql server 2019 2026-10-132026-11-02
CVE-2026-65674
Deserialization of untrusted data in SQL Server allows an authorized attacker to...
high 8.8 —Microsoft / sql server 2019 2026-10-132026-11-02
CVE-2026-67625
Heap-based buffer overflow in SQL Server allows an authorized attacker to execut...
high 8.5 —Microsoft / sql server 2017 2026-10-132026-11-02
CVE-2026-68883
Heap-based buffer overflow in SQL Server allows an authorized attacker to elevat...
high 8.5 —Microsoft / sql server 2017 2026-10-132026-11-02
CVE-2026-102855
Heap-based buffer overflow in Microsoft Office Visio allows an unauthorized atta...
high 8.8 —Microsoft / 365 apps 2026-10-132026-10-20
CVE-2026-97830
Double free in Windows Internet Information Services allows an unauthorized atta...
high 7.5 —Microsoft / windows 11 23h2 2026-10-132026-10-14
CVE-2026-97809
Use after free in Windows Broadcast DVR User Service allows an authorized attack...
high 7.8 —Microsoft / windows 10 1809 2026-10-132026-10-16
CVE-2026-97810
Heap-based buffer overflow in Windows Container Isolation FS Filter Driver (unio...
high 7.0 —Microsoft / windows 11 24h2 2026-10-132026-10-16
CVE-2026-97811
Double free in OpenSSH for Windows allows an authorized attacker to elevate priv...
high 7.8 —Microsoft / windows 10 1809 2026-10-132026-10-16
CVE-2026-97812
Double free in Windows Update Orchestrator Service allows an authorized attacker...
high 7.0 —Microsoft / windows 10 21h2 2026-10-132026-10-16
CVE-2026-97803
Heap-based buffer overflow in Windows Kernel allows an authorized attacker to el...
high 7.8 —Microsoft / windows 11 26h1 2026-10-132026-10-16
CVE-2026-97804
Heap-based buffer overflow in HID class driver allows an authorized attacker to...
high 7.8 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-97806
Use after free in Windows Broadcast DVR User Service allows an authorized attack...
high 7.8 —Microsoft / windows 10 1809 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.