---
cve: "CVE-2026-59118"
severity: "CRITICAL"
cvss: 9.3
epss: "48%"
vendor: "Microsoft"
kev: false
exploited: false
published: "2026-08-07 00:16:33"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-08-31T19:36:31+02:00"
---

# CVE-2026-59118

> 9.3 CRITICAL

## Beschreibung

Improper authorization in Copilot Cowork allows an unauthorized attacker to elevate privileges over a network.

## CVSS-Vektor

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

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

## Referenzen

- <https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-59118>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-59118) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_