---
cve: "CVE-2026-55898"
severity: "MEDIUM"
cvss: 6.1
epss: "30%"
vendor: "Microsoft"
kev: false
exploited: false
published: "2026-07-14 18:18:21"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-03T10:59:50+02:00"
---

# CVE-2026-55898

> 6.1 MEDIUM

## Beschreibung

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.

## CVSS-Vektor

```
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H/E:U/RL:O/RC:C
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Lokal | good |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Erforderlich | good |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Gering | warn |
| I Integrität | Keine | good |
| A Verfügbarkeit | Hoch | bad |

## Referenzen

- <https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55898>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-55898) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_