---
id: "CVE-2026-1603"
kind: "vulnerability"
aliases: ["CVE-2026-1603"]
title: "An authentication bypass in Ivanti Endpoint Manager before version 2024 SU5 allows a remote unauthenticated attacker\u2026"
severity: "high"
cvss: 8.6
epss: null
exploited: true
status: "open"
category: "vendor"
products: [{"name": "Ivanti Endpoint Manager (EPM)", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "ivanti endpoint manager", "fixed": ["2024"], "affected": "< 2024", "ecosystem": "vendor"}, {"name": "ivanti endpoint manager", "fixed": [], "affected": "= 2024", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["endpoint-manager", "exploited", "ivanti", "self-hosted", "vendor"]
not_affected_if: ["unknown"]
published_at: "2026-02-10T16:16:10+00:00"
first_seen_at: "2026-10-23T19:11:51+00:00"
updated_at: "2026-10-23T23:44:51+00:00"
sources: [{"source": "kev", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2026-1603", "first_seen_at": "2026-10-23T19:11:51+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-1603", "first_seen_at": "2026-10-23T23:44:51+00:00"}]
---

# An authentication bypass in Ivanti Endpoint Manager before version 2024 SU5 allows a remote unauthenticated attacker…

Ivanti Endpoint Manager (EPM) has an authentication bypass that lets a remote unauthenticated attacker leak specific stored credential data. 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 Endpoint Manager (EPM) affected ? fixed ?
- vendor:ivanti endpoint manager affected < 2024 fixed 2024
- vendor:ivanti endpoint manager affected = 2024 fixed ?

## Fix

Apply the mitigations from Ivanti's vendor instructions, as CISA requires; the sources do not name a patched version. If mitigations are unavailable, discontinue use of the product per CISA guidance.

## Timeline

- 2026-10-23T19:11:51+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2026-1603
- 2026-10-23T23:44:51+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-1603

## From the sources

Ivanti Endpoint Manager (EPM) contains an authentication bypass using an alternate path or channel vulnerability that could allow a remote unauthenticated attacker to leak specific stored credential data.

CISA required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

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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_