October 2026 CVE archive
Records last modified 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. The modified view only includes records that were CRITICAL or CISA-KEV-listed when imported — it is not a complete list of every modification.
Total records
21,937
Critical
3,121
High
7,064
Medium
6,901
Low
608
Severity not reported
4,243
In CISA KEV
186
Most affected vendors (by CPE data where available): microsoft (1423), linux (722), google (413), ibm (321), oracle (193), mozilla (182), adobe (165), broadcom (118), apache (115), fabian (98)
| CVE | Severity | CVSS | KEV | Vendor / product | Published | Modified |
|---|---|---|---|---|---|---|
| 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-2026-96215 Concurrent execution using shared resource with improper synchronization ('race... |
high | 7.0 | — | Microsoft / windows 11 24h2 | 2026-10-13 | 2026-10-16 |
| CVE-2026-96044 No cwe for this issue in Microsoft Office SharePoint allows an authorized attack... |
high | 8.8 | — | Microsoft / sharepoint server | 2026-10-13 | 2026-10-16 |
| CVE-2026-83635 Out-of-bounds read in DNS Server allows an unauthorized attacker to deny service... |
high | 7.5 | — | Microsoft / windows server 2012 | 2026-10-13 | 2026-10-16 |
| CVE-2026-70167 Access of resource using incompatible type ('type confusion') in DNS Server allo... |
high | 8.8 | — | Microsoft / windows server 2022 | 2026-10-13 | 2026-10-16 |
| CVE-2026-96945 Uncaught exception in Windows Failover Cluster allows an unauthorized attacker t... |
high | 7.5 | — | Microsoft / windows server 2019 | 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-2026-97792 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-2026-97794 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-2026-97799 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-2026-97803 Heap-based buffer overflow in Windows Kernel allows an authorized attacker to el... |
high | 7.8 | — | Microsoft / windows 11 26h1 | 2026-10-13 | 2026-10-16 |
| CVE-2026-97810 Heap-based buffer overflow in Windows Container Isolation FS Filter Driver (unio... |
high | 7.0 | — | Microsoft / windows 11 24h2 | 2026-10-13 | 2026-10-16 |
| 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-2026-97780 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-2026-97769 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-2026-97772 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-2026-97775 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-2026-97759 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-2026-97763 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-2026-97751 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-2026-97755 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-2026-97745 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 |
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.