CVE-2026-1603
HIGHCVE-2026-1603 is a high-severity (CVSS 8.6) CWE-288 vulnerability. It is in CISA's Known Exploited Vulnerabilities catalog (added 2026-03-09) — treat it as actively exploited and patch now. No vendor fix is recorded yet; mitigation options are listed below.
An authentication bypass in Ivanti Endpoint Manager before version 2024 SU5 allows a remote unauthenticated attacker to leak specific stored credential data.
Exploitation Status
Actively exploited in the wild
- Confirmed by CISA's Known Exploited Vulnerabilities catalog on 2026-03-09. Federal agencies were required to remediate by 2026-03-23.
- CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
- A successful exploit gives an attacker total control of the affected component, not partial access.
Exploitation and automatability from CISA (KEV catalog and SSVC triage) for CVE-2026-1603.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
CVE-2026-1603 by exploitation likelihood (EPSS) against impact (CVSS). In the shaded patch-first corner (EPSS 50%+, CVSS 7.0+).
Where this sits among everything scored
Of 395,249 CVEs with a current EPSS score, this one falls in the 50–90% band (highlighted). Counts from FIRST.org, log-scaled.
Description
An authentication bypass in Ivanti Endpoint Manager before version 2024 SU5 allows a remote unauthenticated attacker to leak specific stored credential data.
Affected Products
endpoint managerivantiDetection & mitigation playbook
VulnerabilityDetect
Identify every host running the affected component and compare the installed build against the fixed version below — for source-built or distro-packaged software the version string, not a lockfile, is the source of truth (`dpkg -l`, `rpm -q`, or the binary's own `--version`).
Remediation status
No fixed release is recorded for CVE-2026-1603 yet. Track the upstream advisory, and apply the exposure-reduction steps below in the meantime.
Mitigate without a patch
Put an independent control in front of the weakness: restrict the affected endpoint or interface to trusted networks, require an additional authentication factor or proxy-level check, and invalidate existing sessions and credentials in case the flaw has already been used.
How to detect CVE-2026-1603
A community-maintained Nuclei template exists for this CVE. You can scan for it directly:
nuclei -id cve-2026-1603 -u https://target- Template
- Ivanti Endpoint Manager - Authentication Bypass
- Severity
- high
- Impact
- Remote attackers can leak stored credential data, potentially compromising sensitive information.
- Remediation
- Update to version 2024 SU5 or later.
Template by ProjectDiscovery nuclei-templates (DhiyaneshDk, watchtowrlabs), MIT licensed. View the full template. Scan only systems you are authorised to test.
Frequently Asked Questions
Is CVE-2026-1603 in your dependencies?
Find it across , including transitive dependencies.