Missing authentication
A sensitive function is reachable without proving who is using it.
CWE-306 · NVD record: nvd@nist.gov
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Exploited. On CISA's list since 2026-03-09.
Ivanti Endpoint Manager (EPM) Authentication Bypass Vulnerability
CVE-2026-1603 · Ivanti Endpoint Manager (EPM) · Published 2026-02-10
How bad would it be?
7.5 out of 10
CVSS rates it high.
How likely is it to be used?
88%
Estimated chance of exploitation in the next 30 days, among the top 1% of all scored flaws (EPSS, 2026-10-29).
Is it already being used?
Yes
CISA has seen it exploited in real attacks. For US government agencies the fix is deadline passed 221 days ago (2026-03-23).
What CISA says to do
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
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.
What the flaw is
An authentication bypass in Ivanti Endpoint Manager before version 2024 SU5 allows a remote unauthenticated attacker to leak specific stored credential data.
From the NVD.
Fixes and advisories
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Understand the kind of weakness behind this flaw. These resources teach the weakness, rather than reproduce this specific CVE. Follow the vendor's advice above to fix the affected product.
CWE-288 · CISA KEV; NVD record: 3c1d8aa1-5a33-4ea4-8992-aadd6440af75. We have not selected a close learning match for this label.
CWE is a catalogue of weakness types. Labels come from the sources shown and can differ or change. Resource matches reviewed 16 October 2026.
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Exploited flaws from CISA's KEV catalogue. Chance of exploitation from EPSS by FIRST. Descriptions and scores from the NVD. This product uses the NVD API but is not endorsed or certified by the NVD.