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.
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)
| CVE | Severity | CVSS | KEV | Vendor / product | Published | Modified |
|---|---|---|---|---|---|---|
| CVE-2026-97759 Use after free in Microsoft Office Excel allows an unauthorized attacker to exec... |
high | 8.8 | — | Microsoft / 365 apps | 2026-10-13 | 2026-10-15 |
| CVE-2026-97761 Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized att... |
high | 8.8 | — | Microsoft / 365 apps | 2026-10-13 | 2026-10-15 |
| CVE-2026-97762 Out-of-bounds write in Microsoft Office Excel allows an unauthorized attacker to... |
high | 8.8 | — | Microsoft / 365 apps | 2026-10-13 | 2026-10-15 |
| CVE-2026-97747 Use after free in Microsoft Office Excel allows an unauthorized attacker to exec... |
high | 8.8 | — | Microsoft / 365 apps | 2026-10-13 | 2026-10-15 |
| CVE-2026-97748 Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized atta... |
high | 8.8 | — | Microsoft / 365 apps | 2026-10-13 | 2026-10-15 |
| CVE-2026-97750 Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized att... |
high | 8.8 | — | Microsoft / 365 apps | 2026-10-13 | 2026-10-15 |
| CVE-2026-97751 Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized atta... |
high | 8.8 | — | Microsoft / 365 apps | 2026-10-13 | 2026-10-15 |
| CVE-2026-97752 Use after free in Microsoft Office Excel allows an unauthorized attacker to exec... |
high | 8.8 | — | Microsoft / 365 apps | 2026-10-13 | 2026-10-15 |
| CVE-2026-97753 Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized atta... |
high | 8.8 | — | Microsoft / 365 apps | 2026-10-13 | 2026-10-15 |
| CVE-2026-97754 Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized atta... |
high | 8.8 | — | Microsoft / 365 apps | 2026-10-13 | 2026-10-15 |
| CVE-2026-97739 Integer underflow (wrap or wraparound) in Microsoft Office Excel allows an unaut... |
high | 8.8 | — | Microsoft / 365 apps | 2026-10-13 | 2026-10-15 |
| CVE-2026-97741 Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized atta... |
high | 8.8 | — | Microsoft / 365 apps | 2026-10-13 | 2026-10-15 |
| CVE-2026-97742 Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized att... |
high | 8.8 | — | Microsoft / 365 apps | 2026-10-13 | 2026-10-15 |
| CVE-2026-97745 Use after free in Microsoft Office Excel allows an unauthorized attacker to exec... |
high | 8.8 | — | Microsoft / 365 apps | 2026-10-13 | 2026-10-15 |
| CVE-2026-97746 Integer underflow (wrap or wraparound) in Microsoft Office Excel allows an unaut... |
high | 8.8 | — | Microsoft / 365 apps | 2026-10-13 | 2026-10-15 |
| CVE-2026-97010 Use after free in Microsoft Office Excel allows an unauthorized attacker to exec... |
high | 8.8 | — | Microsoft / 365 apps | 2026-10-13 | 2026-10-15 |
| CVE-2026-97011 Use of uninitialized resource in Microsoft Office Excel allows an unauthorized a... |
high | 8.8 | — | Microsoft / 365 apps | 2026-10-13 | 2026-10-15 |
| CVE-2026-97012 Stack-based buffer overflow in Microsoft Office Outlook allows an unauthorized a... |
high | 8.8 | — | Microsoft / 365 apps | 2026-10-13 | 2026-10-15 |
| CVE-2026-97017 Use after free in Microsoft Office Excel allows an unauthorized attacker to exec... |
high | 8.8 | — | Microsoft / 365 apps | 2026-10-13 | 2026-10-15 |
| CVE-2026-97738 Use after free in Microsoft Office Excel allows an unauthorized attacker to exec... |
high | 8.8 | — | Microsoft / 365 apps | 2026-10-13 | 2026-10-15 |
| CVE-2026-96997 Use after free in Microsoft Office OneNote allows an authorized attacker to elev... |
high | 7.8 | — | Microsoft / 365 apps | 2026-10-13 | 2026-10-15 |
| CVE-2026-97001 Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attac... |
high | 7.8 | — | Microsoft / 365 apps | 2026-10-13 | 2026-10-15 |
| CVE-2026-97003 Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized atta... |
high | 8.8 | — | Microsoft / 365 apps | 2026-10-13 | 2026-10-15 |
| CVE-2026-97004 Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized atta... |
high | 8.8 | — | Microsoft / 365 apps | 2026-10-13 | 2026-10-15 |
| CVE-2026-97007 Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized atta... |
high | 8.8 | — | Microsoft / 365 apps | 2026-10-13 | 2026-10-15 |
| CVE-2026-97008 Buffer underwrite ('buffer underflow') in Microsoft Office Excel allows an unaut... |
high | 8.8 | — | Microsoft / 365 apps | 2026-10-13 | 2026-10-15 |
| CVE-2026-97009 Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized atta... |
high | 7.8 | — | Microsoft / 365 apps | 2026-10-13 | 2026-10-14 |
| CVE-2026-96953 Null pointer dereference in Windows Universal Disk Format File System Driver (UD... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-16 |
| CVE-2026-96957 Improper verification of cryptographic signature in .NET allows an unauthorized... |
high | 8.8 | — | Microsoft / .net | 2026-10-13 | 2026-10-22 |
| CVE-2026-96958 Inefficient algorithmic complexity in .NET allows an unauthorized attacker to de... |
high | 7.5 | — | Microsoft / .net | 2026-10-13 | 2026-10-22 |
| CVE-2026-96959 Allocation of resources without limits or throttling in .NET allows an unauthori... |
high | 7.5 | — | Microsoft / .net | 2026-10-13 | 2026-10-22 |
| CVE-2026-96960 Asymmetric resource consumption (amplification) in .NET allows an unauthorized a... |
high | 7.5 | — | Microsoft / .net | 2026-10-13 | 2026-10-22 |
| CVE-2026-96995 Stack-based buffer overflow in Microsoft Office Word allows an authorized attack... |
high | 7.8 | — | Microsoft / 365 apps | 2026-10-13 | 2026-10-15 |
| CVE-2026-96996 Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attac... |
high | 7.8 | — | Microsoft / 365 apps | 2026-10-13 | 2026-10-15 |
| CVE-2026-96951 Microsoft Windows Command Injection Vulnerability |
high | 8.8 | Listed | Microsoft / Windows | 2026-10-13 | 2026-10-29 |
| CVE-2026-96947 Use after free in Windows Universal Disk Format File System Driver (UDFS) allows... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-16 |
| CVE-2026-96949 Use after free in Windows Universal Disk Format File System Driver (UDFS) allows... |
high | 7.0 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-16 |
| CVE-2026-96950 Use after free in Windows Universal Disk Format File System Driver (UDFS) allows... |
high | 7.8 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-16 |
| CVE-2026-96952 Heap-based buffer overflow in Microsoft Windows Media Foundation allows an unaut... |
high | 8.8 | — | Microsoft / windows 10 1809 | 2026-10-13 | 2026-10-16 |
| CVE-2026-96939 Time-of-check time-of-use (toctou) race condition in Servicing Stack Updates all... |
high | 7.0 | — | Microsoft / windows 11 23h2 | 2026-10-13 | 2026-10-16 |
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.