---
cve: "CVE-2026-104935"
severity: "HIGH"
cvss: 8.6
epss: "86.8%"
vendor: "Ivanti"
kev: true
exploited: true
published: "2026-10-13 16:17:11"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-10-28T21:10:46+01:00"
---

# CVE-2026-104935

> 8.6 HIGH · ⚠️ CISA KEV (13 Tage) · 🔓 Exploited

## Beschreibung

Authentication bypass by spoofing in ICS before version 25.1.3.0 allows a remote unauthenticated attacker to execute arbitrary commands. This does not impact ICS version 22.7R2.14 or prior.

## CNA-Record (Kanon, cvelistV5)

- CNA: **ivanti**
- State: PUBLISHED
- Stand: 2026-10-13 19:58:23
- CNA-CVSS: **8.6** (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L`)

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **active**
  - Automatable: **yes**
  - Technical Impact: **total**

## CVSS-Vektor

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

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

## Schwachstellen-Klasse

- **CWE-290** — Authentication Bypass by Spoofing
  This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks.

## Angriffsmuster (CAPEC)

- [CAPEC-21 — Exploitation of Trusted Identifiers](https://capec.mitre.org/data/definitions/21.html) _(Severity: High)_
- [CAPEC-22 — Exploiting Trust in Client](https://capec.mitre.org/data/definitions/22.html) _(Severity: High)_
- [CAPEC-59 — Session Credential Falsification through Prediction](https://capec.mitre.org/data/definitions/59.html) _(Severity: High)_
- [CAPEC-60 — Reusing Session IDs (aka Session Replay)](https://capec.mitre.org/data/definitions/60.html) _(Severity: High)_
- [CAPEC-459 — Creating a Rogue Certification Authority Certificate](https://capec.mitre.org/data/definitions/459.html) _(Severity: Very High)_
- [CAPEC-461 — Web Services API Signature Forgery Leveraging Hash Function Extension Weakness](https://capec.mitre.org/data/definitions/461.html) _(Severity: High)_
- [CAPEC-473 — Signature Spoof](https://capec.mitre.org/data/definitions/473.html)
- [CAPEC-476 — Signature Spoofing by Misrepresentation](https://capec.mitre.org/data/definitions/476.html) _(Severity: High)_

## ATT&CK-Techniken

- [T1134 — Access Token Manipulation](https://attack.mitre.org/techniques/T1134/)
- [T1528 — Steal Application Access Token](https://attack.mitre.org/techniques/T1528/)
- [T1539 — Steal Web Session Cookie](https://attack.mitre.org/techniques/T1539/)
- [T1134.001 — Access Token Manipulation:Token Impersonation/Theft](https://attack.mitre.org/techniques/T1134/001/)
- [T1550.004 — Use Alternate Authentication Material:Web Session Cookie](https://attack.mitre.org/techniques/T1550/004/)
- [T1036.001 — Masquerading: Invalid Code Signature](https://attack.mitre.org/techniques/T1036/001/)
- [T1553.002 — Subvert Trust Controls: Code Signing](https://attack.mitre.org/techniques/T1553/002/)

## BSI-Hinweise (deutsch)

- [Ivanti Connect Secure: Schwachstelle ermöglicht die Umgehung von Authentifizierung und Codeausführung](https://wid.cert-bund.de/portal/wid/sicherheitshinweis/WID-SEC-W-2026-3936) — _BSI-Einstufung: hoch_
  Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Ivanti Connect Secure ausnutzen, um Sicherheitsvorkehrungen zu umgehen und um beliebigen Code auszuführen.

## Referenzen

- <https://hub.ivanti.com/s/article/Security-Advisory-Ivanti-Connect-Secure-CVE-2026-104935>
- <https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-104935>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2026-104935/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_