---
id: "CVE-2026-104935"
kind: "vulnerability"
aliases: ["CVE-2026-104935"]
title: "ivanti connect secure: Authentication bypass by spoofing in ICS before version 25.1.3.0 allows a remote unauthenticated attacker to execute\u2026"
severity: "critical"
cvss: 8.6
epss: null
exploited: true
status: "open"
category: "vendor"
products: [{"name": "ivanti connect secure", "fixed": ["25.1.1.2"], "affected": ">= 25.1.0.0, < 25.1.1.2", "ecosystem": "vendor"}, {"name": "ivanti connect secure", "fixed": ["25.1.3.0"], "affected": ">= 25.1.2.0, < 25.1.3.0", "ecosystem": "vendor"}, {"name": "ivanti connect secure", "fixed": [], "affected": "= 22.8", "ecosystem": "vendor"}, {"name": "Ivanti Connect Secure", "fixed": [], "affected": "", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["connect-secure", "exploited", "ivanti", "poc-public", "self-hosted", "vendor", "vpn"]
not_affected_if: ["managed-hosting"]
published_at: "2026-10-13T00:00:00+00:00"
first_seen_at: "2026-10-23T19:11:50+00:00"
updated_at: "2026-10-24T00:09:50+00:00"
sources: [{"source": "kev", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2026-104935", "first_seen_at": "2026-10-23T19:11:50+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-104935", "first_seen_at": "2026-10-23T23:44:52+00:00"}, {"source": "github-poc", "url": "https://github.com/CompleteTech-LLC/ivanti-connect-secure-cve-2026-104935-check", "first_seen_at": "2026-10-23T23:55:02+00:00"}]
---

# ivanti connect secure: Authentication bypass by spoofing in ICS before version 25.1.3.0 allows a remote unauthenticated attacker to execute…

Ivanti Connect Secure has an authentication bypass by spoofing flaw that lets a remote unauthenticated attacker run arbitrary commands on the appliance. CISA lists it as actively exploited in the wild.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- vendor:ivanti connect secure affected >= 25.1.0.0, < 25.1.1.2 fixed 25.1.1.2
- vendor:ivanti connect secure affected >= 25.1.2.0, < 25.1.3.0 fixed 25.1.3.0
- vendor:ivanti connect secure affected = 22.8 fixed ?
- vendor:Ivanti Connect Secure affected ? fixed ?

## How to check

Check the Connect Secure version in the admin console against the vendor advisory; the sources do not give affected version ranges.
Review logs for unexpected administrative or command execution activity, per CISA's forensics triage requirements (linked in the KEV notes).

## Fix

Apply the vendor mitigation or patch from Ivanti per CISA BOD 26-04; the sources do not name the fixed version.
If no mitigation is available, discontinue use of the product per CISA guidance.

## Timeline

- 2026-10-23T19:11:50+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2026-104935
- 2026-10-23T23:44:52+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-104935
- 2026-10-23T23:55:02+00:00 github-poc https://github.com/CompleteTech-LLC/ivanti-connect-secure-cve-2026-104935-check

## Documents

- [poc] CompleteTech-LLC/ivanti-connect-secure-cve-2026-104935-check https://github.com/CompleteTech-LLC/ivanti-connect-secure-cve-2026-104935-check

## From the sources

Ivanti Connect Secure contains an authentication bypass by spoofing vulnerability that allows a remote unauthenticated attacker to execute arbitrary commands.

CISA required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_