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CISA Adds CVE-2026-1603 to KEV for Ivanti EPM Exploitation
CISA has added CVE-2026-1603 to the Known Exploited Vulnerabilities (KEV) catalogue. The affected vendor is Ivanti, and the product is Ivanti Endpoint Manager (EPM). The vulnerability, Ivanti Endpoint Manager (EPM) Authentication Bypass Vulnerability, is an authentication bypass via an alternate path or channel that could allow a remote unauthenticated attacker to leak specific stored credential data. Date added to KEV: 9 March 2026.
Technical detail: The flaw is an authentication bypass in EPM that enables a remote, unauthenticated attacker to access and exfiltrate stored credential data. The CVSS v3.1 base score is 8.6 (HIGH). A patch is available from Ivanti, and the vendor’s February 2026 security advisory provides mitigations and guidance for both on‑premises and cloud deployments.
Exploitation and risk: The KEV listing confirms active exploitation in the wild. There is no publicly known ransomware campaign linked to this CVE (Known Ransomware Campaign Use: Unknown). The remediation due date is 23 March 2026.
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. Directly affected: FCEB agencies. All organisations should review their exposure and prioritise remediation for systems running Ivanti Endpoint Manager.
Final sentence: For full details, see the NVD entry and the CISA KEV catalogue.
Story timeline CVE-2026-1603
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| Published (UTC) | Outlet | Headline |
|---|---|---|
| Wed 11 Feb · 12:40 UTC | SecurityWeek | Ivanti Patches Endpoint Manager Vulnerabilities Disclosed in October 2025 |
| Thu 12 Feb · 05:10 UTC | SecurityOnline | CVE-2026-1603: Remote Unauthenticated Attacker Can Steal Ivanti EPM Secrets |
| Thu 12 Feb · 06:50 UTC | Security Affairs | Multiple Endpoint Manager bugs patched by Ivanti, including remote auth bypass |
| Mon 9 Mar · 21:22 UTC | CISA | CISA Adds CVE-2026-1603 to KEV for Ivanti EPM Exploitation (this article) |
| Mon 9 Mar · 21:28 UTC | CISA | CISA flags CVE-2026-1603 authentication bypass in Ivanti EPM |
| Tue 10 Mar · 07:43 UTC | The Hacker News | CISA flags KEV amid active exploits CVE-2025-26399 CVE-2026-1603 |
| Tue 10 Mar · 10:49 UTC | Security Affairs | CISA Adds KEV Flaws CVE-2021-22054 CVE-2025-26399 CVE-2026-1603 |
| Tue 10 Mar · 12:21 UTC | SecurityWeek | CISA adds Ivanti CVE-2026-1603 auth bypass to KEV, patch now |