CVE-2026-1603: Ivanti Endpoint Manager (EPM)

Should you act?

Exploited: patch now if you run it

CISA has confirmed exploitation in the wild. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.

Yes, if you run Ivanti Endpoint Manager (EPM). CISA added this CVE to its Known Exploited Vulnerabilities catalog on 2026-03-09, which means there is reliable evidence of exploitation in the wild. US federal agencies must remediate by 2026-03-23; treat that as the outer limit, not the target.
EPSS 88.3%, percentile 99.8: FIRST’s model estimates a 88.3% chance of exploitation activity in the next 30 days, higher than 99.8% of all scored CVEs (very high). EPSS is a probability, not a verdict.
Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.

What it is

An authentication bypass in Ivanti Endpoint Manager before version 2024 SU5 allows a remote unauthenticated attacker to leak specific stored credential data.

CISA’s summary

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.

Weakness type: CWE-288.

Product: Ivanti Endpoint Manager (EPM) · Assigned by: ivanti · Published: 2026-02-10

Affected and fixed versions

Vendor	Product	Affected versions (per CVE record)
Ivanti	Endpoint Manager	see vendor advisory

Severity scores

Scored by	CVSS	Score	Vector
ivanti	3.1	8.6 High	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N`

Attack vector: network (remotely reachable)
Attack complexity: low
Privileges required: none (no login)
User interaction: none
Scope: changed (can affect other components)

CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.

Exploitation and urgency

CISA KEV: added 2026-03-09; federal due date 2026-03-23. Known ransomware use: Unknown.
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.
CISA SSVC assessment: exploitation active, automatable yes, technical impact total.
FIRST EPSS (model of 2026-10-21): 88.33% probability of exploitation activity in the next 30 days; percentile 99.8.

Timeline

2026-02-10 — CVE record published by ivanti
2026-03-09 — Added to CISA’s Known Exploited Vulnerabilities catalog
2026-03-10 — CVE record last updated
2026-03-23 — CISA remediation deadline for US federal agencies

Sources and references

Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.