Security
Microsoft security updates and public advisory evidence: affected products, fixing updates, exploitation and source coverage.
998Microsoft CVEsreleased Tue 8 Sep
132Critical105 need an update · 27 fixed service-side
2Exploited in the wild
0Publicly disclosed
2In CISA KEV
249Revised since release
Act first · September 2026
Exploited, KEV-listed, or publicly disclosedPatch next · critical, "exploitation more likely", or top 5% EPSS · needs an update154
Showing 3 of 154All critical
| CVE | Vulnerability | Severity | CVSS | EPSS | Impact | Status | Fixed by |
|---|---|---|---|---|---|---|---|
| CVE-2026-81391 | Microsoft Excel Information Disclosure VulnerabilityMicrosoft Office Excel | Important | 5.5 | 0.5% | Information DisclosureLocal | Revised 17 Sep | KB5002904KB5002914 |
| CVE-2026-81392 | Microsoft Excel Information Disclosure VulnerabilityMicrosoft Office Excel | Important | 5.5 | 0.5% | Information DisclosureLocal | Revised 17 Sep | KB5002904KB5002914 |
| CVE-2026-81393 | Microsoft Excel Information Disclosure VulnerabilityMicrosoft Office Excel | Important | 5.5 | 0.5% | Information DisclosureLocal | Revised 17 Sep | KB5002904KB5002914 |
| CVE-2026-81394 | Microsoft Excel Information Disclosure VulnerabilityMicrosoft Office Excel | Important | 5.5 | 0.6% | Information DisclosureLocal | Revised 10 Nov | KB5002904KB5002914 |
| CVE-2026-81395 | Microsoft Excel Information Disclosure VulnerabilityMicrosoft Office Excel | Important | 5.5 | 0.5% | Information DisclosureLocal | Revised 17 Sep | KB5002904KB5002914 |
| CVE-2026-81399 | Microsoft Excel Information Disclosure VulnerabilityMicrosoft Office Excel | Important | 5.5 | 0.5% | Information DisclosureLocal | Revised 17 Sep | KB5002904KB5002914 |
| CVE-2026-81400 | Microsoft Excel Information Disclosure VulnerabilityMicrosoft Office Excel | Important | 5.5 | 0.5% | Information DisclosureLocal | Revised 17 Sep | KB5002904KB5002914 |
| CVE-2026-81401 | Microsoft Excel Information Disclosure VulnerabilityMicrosoft Office Excel | Important | 5.5 | 0.5% | Information DisclosureLocal | Revised 17 Sep | KB5002904KB5002910+1 |
| CVE-2026-81958 | Microsoft Excel Information Disclosure VulnerabilityMicrosoft Office Excel | Important | 5.5 | 0.5% | Information DisclosureLocal | Revised 17 Sep | KB5002904KB5002914 |
| CVE-2026-83949 | Microsoft Office Word Information Disclosure VulnerabilityMicrosoft Office Word | Important | 5.5 | 0.5% | Information DisclosureLocal | KB5002923 | |
| CVE-2026-83951 | Microsoft Office Word Information Disclosure VulnerabilityMicrosoft Office Word | Important | 5.5 | 0.5% | Information DisclosureLocal | KB5002923 | |
| CVE-2026-85875 | Microsoft Office Excel Information Disclosure VulnerabilityMicrosoft Office Excel | Important | 5.5 | 0.5% | Information DisclosureLocal | Revised 17 Sep | KB5002904KB5002914 |