Authentication Bypass in Ivanti Endpoint Manager
CVE-2026-1603 is a high-severity authentication bypass vulnerability in Ivanti Endpoint Manager (EPM) affecting versions prior to 2024 SU5, including 2024 SU4 SR1 and earlier per the provided advisory context. The flaw is described as an authentication bypass using an alternate path or channel and, more specifically, as stemming from an alternative weak authentication path in the AuthHelper class. A remote attacker can exploit the issue over the network without authentication, privileges, or user interaction. Successful exploitation allows access to specific stored credential data, resulting in confidentiality impact without indicated integrity or availability impact. The provided CVSS v3.1 vector is AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N (8.6).
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Impact, mitigation & remediation
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
Impact
What an attacker gets, and what they’ve been doing with it.
Mitigation
If you can’t patch tonight, do this now.
Remediation
Patch, then assume compromise.
Exploits
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Affected products & vendors
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
Recent activity
70 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An Ivanti Endpoint Manager vulnerability referenced as actively exploited and included in CISA's KEV catalog; the content states it enables attackers to bypass authentication or execute remote code and access sensitive enterprise systems.
A vulnerability in Ivanti Endpoint Manager (EPM) that has been weaponized by threat actors since mid-February, prompting CISA to shorten remediation timelines.
Unknown (mentioned as added to CISA KEV; no additional technical details provided in the content).
An authentication bypass in Ivanti Endpoint Manager (before 2024 SU5) that can be exploited remotely without credentials to leak stored credential data / sensitive login information.
The version that knows your environment.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.