September 2026 CVE archive
Records last modified in NIST NVD between Sep 1 and Sep 30, 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
11,364
Critical
1,230
High
4,374
Medium
4,126
Low
462
Severity not reported
1,172
In CISA KEV
59
Most affected vendors (by CPE data where available): microsoft (964), google (608), oracle (274), apple (244), adobe (197), dell (138), ibm (104), arubanetworks (101), mongodb (64), apache (56)
| CVE | Severity | CVSS | KEV | Vendor / product | Published | Modified |
|---|---|---|---|---|---|---|
| CVE-2026-83949 Buffer over-read in Microsoft Office Word allows an unauthorized attacker to dis... |
medium | 5.5 | — | Microsoft / 365 apps | 2026-09-08 | 2026-09-08 |
| CVE-2026-83951 Buffer over-read in Microsoft Office Word allows an unauthorized attacker to dis... |
medium | 5.5 | — | Microsoft / 365 apps | 2026-09-08 | 2026-09-08 |
| CVE-2026-77911 Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to d... |
medium | 6.5 | — | Microsoft / 365 apps | 2026-09-08 | 2026-09-08 |
| CVE-2026-69904 Server-side request forgery (ssrf) in Microsoft Office SharePoint allows an auth... |
low | 3.5 | — | Microsoft / sharepoint server | 2026-09-08 | 2026-09-09 |
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.