---
cve: "CVE-2021-43549"
severity: "MEDIUM"
cvss: 6.9
epss: "67%"
vendor: "OSIsoft"
kev: false
exploited: false
published: "2021-11-18 14:18:48"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-10T05:46:02+02:00"
---

# CVE-2021-43549

> 6.9 MEDIUM

## Beschreibung

A remote authenticated attacker with write access to a PI Server could trick a user into interacting with a PI Web API endpoint and redirect them to a malicious website. As a result, a victim may disclose sensitive information to the attacker or be provided with false information.

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:L/A:N
```

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

## Referenzen

- <https://us-cert.cisa.gov/ics/advisories/icsa-21-313-06>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2021-43549) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_