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-2026-97807 Use after free in Windows Broadcast DVR User Service allows an authorized attack... |
high | 7.8 | — | Microsoft / windows 10 1809 | 2026-10-13 | 2026-10-16 |
| CVE-2026-97808 Use after free in Windows Broadcast DVR User Service allows an authorized attack... |
high | 7.0 | — | Microsoft / windows 10 1809 | 2026-10-13 | 2026-10-16 |
| CVE-2026-97792 Improper access control in Windows Container Isolation FS Filter Driver (unionfs... |
high | 7.8 | — | Microsoft / windows 11 23h2 | 2026-10-13 | 2026-10-16 |
| CVE-2026-97793 Missing authentication for critical function in Windows Setup and Deployment all... |
high | 7.0 | — | Microsoft / windows 10 1809 | 2026-10-13 | 2026-10-16 |
| CVE-2026-97794 Heap-based buffer overflow in Windows Container Isolation FS Filter Driver (unio... |
high | 7.8 | — | Microsoft / windows 11 23h2 | 2026-10-13 | 2026-10-16 |
| CVE-2026-97798 Improper neutralization of argument delimiters in a command ('argument injection... |
high | 7.8 | — | Microsoft / windows 10 21h2 | 2026-10-13 | 2026-10-16 |
| CVE-2026-97799 Improper verification of cryptographic signature in Windows Audio Service allows... |
high | 7.8 | — | Microsoft / windows 11 24h2 | 2026-10-13 | 2026-10-16 |
| CVE-2026-97800 Incorrect permission assignment for critical resource in Windows Mobile Broadban... |
high | 7.8 | — | Microsoft / windows 11 24h2 | 2026-10-13 | 2026-10-16 |
| CVE-2026-97780 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-2026-97781 Improper neutralization of special elements used in a command ('command injectio... |
high | 8.8 | — | Microsoft / 365 apps | 2026-10-13 | 2026-10-16 |
| CVE-2026-97787 Concurrent execution using shared resource with improper synchronization ('race... |
high | 7.0 | — | Microsoft / windows 11 23h2 | 2026-10-13 | 2026-10-16 |
| CVE-2026-97788 Observable discrepancy in Active Directory Federation Services (AD FS) allows an... |
high | 7.5 | — | Microsoft / windows 10 1607 | 2026-10-13 | 2026-10-16 |
| CVE-2026-97789 Use after free in Remote Desktop Client allows an unauthorized attacker to execu... |
high | 7.5 | — | Microsoft / windows server 2022 | 2026-10-13 | 2026-10-16 |
| CVE-2026-97772 Double free in Microsoft Office Excel allows an unauthorized attacker to execute... |
high | 8.8 | — | Microsoft / 365 apps | 2026-10-13 | 2026-10-15 |
| CVE-2026-97773 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-2026-97774 Time-of-check time-of-use (toctou) race condition in Microsoft Office Click-To-R... |
high | 7.0 | — | Microsoft / 365 apps | 2026-10-13 | 2026-10-15 |
| CVE-2026-97775 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-2026-97776 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-2026-97777 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-2026-97778 Integer overflow or wraparound in Microsoft Office Excel allows an unauthorized... |
high | 8.8 | — | Microsoft / 365 apps | 2026-10-13 | 2026-10-15 |
| CVE-2026-97763 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-2026-97765 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-2026-97766 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-2026-97767 Double free in Microsoft Office Excel allows an unauthorized attacker to execute... |
high | 8.8 | — | Microsoft / 365 apps | 2026-10-13 | 2026-10-15 |
| CVE-2026-97768 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-2026-97769 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-2026-97770 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-2026-97771 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-2026-97755 Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to... |
high | 8.8 | — | Microsoft / 365 apps | 2026-10-13 | 2026-10-15 |
| CVE-2026-97756 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-2026-97757 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-2026-97758 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-2026-97759 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 |
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.