Status: UPDATED | Advisory ID: CVE-2026-23657
| CVE | CVE-2026-23657 |
| CVSS Score / Version | 7.8 (High) / CVSS v3.1 |
| Updated | 2026-09-24 |
| CVSS Vector | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| CVSS Prose | attack vector is local; attack complexity is low; privileges required is none; user interaction is required; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high. |
| Affected products | Microsoft Office Long Term Servicing Channel |
| Classified as | CWE-416 (Use After Free) |
| Exploitation prediction (EPSS) | 0.41% probability of exploitation in the next 30 days (33% percentile) -- FIRST.org's EPSS model. |
| Vendor | Product | Affected Versions | Patch Status |
|---|---|---|---|
| Microsoft | Office Long Term Servicing Channel |
| Subsystems | General OT |
| Sectors | Multiple |
Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.
Monitor Microsoft's web page for any future patch releases. See vendor advisory link below.