---
cve: "CVE-2026-20312"
severity: "HIGH"
cvss: 8.8
epss: "20%"
vendor: "Cisco"
kev: false
exploited: false
published: "2026-08-05 17:16:52"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-10T12:22:04+02:00"
---

# CVE-2026-20312

> 8.8 HIGH

## Beschreibung

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Catalyst SD-WAN engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities.

The vulnerabilities tracked by CVE-2026-20312 are related to Cleartext storage of sensitive information issues that are grouped under the Common Weakness Enumeration (CWE) CWE-312.

## CVSS-Vektor

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

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

## Schwachstellen-Klasse

- **CWE-312** — Cleartext Storage of Sensitive Information
  The product stores sensitive information in cleartext within a resource that might be accessible to another control sphere.

## Angriffsmuster (CAPEC)

- [CAPEC-37 — Retrieve Embedded Sensitive Data](https://capec.mitre.org/data/definitions/37.html) _(Severity: Very High)_

## ATT&CK-Techniken

- [T1005 — Data from Local System](https://attack.mitre.org/techniques/T1005/)
- [T1552.004 — Unsecured Credentials: Private Keys](https://attack.mitre.org/techniques/T1552/004/)

## Referenzen

- <https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-sdwan-faLcR3K>
- <https://www.cve.org/Media/News/item/blog/2026/06/16/Preserving-Vulnerability-Level-Identification>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-20312) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_