---
cve: "CVE-2026-17309"
severity: "HIGH"
cvss: 8.0
epss: "0.1%"
vendor: "IBM"
kev: false
exploited: false
published: "2026-11-07 05:18:39"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-11-09T18:38:46+01:00"
---

# CVE-2026-17309

> 8.0 HIGH

## Beschreibung

IBM API Connect 12.1.0.0 through 12.1.1.2 could allow a remote attacker to obtain sensitive information and tamper with configuration due to improper certificate validation.

## CNA-Record (Kanon, cvelistV5)

- CNA: **ibm**
- State: PUBLISHED
- Stand: 2026-11-07 04:33:01
- CNA-CVSS: **8.0** (`CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N`)

## CVSS-Vektor

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

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

## Schwachstellen-Klasse

- **CWE-295** — Improper Certificate Validation
  The product does not validate, or incorrectly validates, a certificate.

## Angriffsmuster (CAPEC)

- [CAPEC-459 — Creating a Rogue Certification Authority Certificate](https://capec.mitre.org/data/definitions/459.html) _(Severity: Very High)_
- [CAPEC-475 — Signature Spoofing by Improper Validation](https://capec.mitre.org/data/definitions/475.html) _(Severity: High)_

## Referenzen

- <https://www.ibm.com/support/pages/node/7295635>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2026-17309/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_