{"id":"CVE-2026-1603","kind":"vulnerability","aliases":["CVE-2026-1603"],"related":[],"title":"An authentication bypass in Ivanti Endpoint Manager before version 2024 SU5 allows a remote unauthenticated attacker…","description":"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.\n\nCISA 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.","summary":"Ivanti Endpoint Manager (EPM) has an authentication bypass that lets a remote unauthenticated attacker leak specific stored credential data. CISA lists it as actively exploited in the wild.","severity":"high","cvss":8.6,"epss":null,"exploited":true,"exploited_at":"2026-03-09T00:00:00+00:00","products":[{"name":"Ivanti Endpoint Manager (EPM)","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"ivanti endpoint manager","fixed":["2024"],"affected":"< 2024","ecosystem":"vendor"},{"name":"ivanti endpoint manager","fixed":[],"affected":"= 2024","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["endpoint-manager","exploited","ivanti","self-hosted","vendor"],"not_affected_if":["unknown"],"how_to_check":null,"fix":"Apply the mitigations from Ivanti's vendor instructions, as CISA requires; the sources do not name a patched version. If mitigations are unavailable, discontinue use of the product per CISA guidance.","status":"open","published_at":"2026-02-10T16:16:10+00:00","first_seen_at":"2026-10-23T19:11:51+00:00","triaged_at":"2026-10-23T20:39:09+00:00","updated_at":"2026-10-23T23:44:51+00:00","category":"vendor","confidence":0.6,"triage":{"at":"2026-10-23T20:39:09Z","model":"claude-haiku-5-5","output":{"fix":"Apply the mitigations from Ivanti's vendor instructions, as CISA requires; the sources do not name a patched version. If mitigations are unavailable, discontinue use of the product per CISA guidance.","reach":"internet","summary":"Ivanti Endpoint Manager (EPM) has an authentication bypass that lets a remote unauthenticated attacker leak specific stored credential data. CISA lists it as actively exploited in the wild.","category":"vendor","who_cares":["ivanti","endpoint-manager","self-hosted"],"confidence":0.6,"needs_auth":"no","worst_case":"Remote attacker reads stored credentials without logging in, enabling wider compromise.","analyst_note":"Find Ivanti's advisory for CVE-2026-1603 to get affected and fixed versions, detection steps, and the exact mitigation; the KEV entry alone does not give them.","how_to_check":"unknown","needs_analyst":true,"not_affected_if":["unknown"],"user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000447,"input_tokens":2574,"output_tokens":379,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-01':110C '-1603':19A,22A '-2026':18A,21A '2024':10A '22':109C 'action':100C 'activ':65B 'allow':12A,87C 'altern':80C 'appli':101C 'applic':107C 'attack':16A,55B,91C 'authent':2A,48B,76C 'bod':108C 'bypass':3A,49B,77C 'channel':83C 'cisa':61B,98C 'cloud':113C 'contain':74C 'could':86C 'credenti':59B,96C 'cve':17A,20A 'data':60B,97C 'discontinu':116C 'endpoint':6A,24A,28A,31A,34B,43B,71C 'endpoint-manag':33B 'epm':26A,45B,73C 'exploit':36B,66B 'follow':106C 'guidanc':111C 'host':40B 'instruct':105C 'ivanti':5A,23A,27A,30A,37B,42B,70C 'leak':56B,93C 'let':51B 'list':62B 'manag':7A,35B,44B,72C 'manager':25A,29A,32A 'mitig':102C,122C 'path':81C 'per':103C 'product':120C 'remot':14A,53B,89C 'requir':99C 'self':39B 'self-host':38B 'servic':114C 'specif':57B,94C 'store':58B,95C 'su5':11A 'unauthent':15A,54B,90C 'unavail':124C 'use':78C,117C 'vendor':41B,104C 'version':9A 'vulner':84C 'wild':69B","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2026-02-10T16:16:10+00:00","kev":{"dateAdded":"2026-03-09","dueDate":"2026-03-23","requiredAction":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","knownRansomwareCampaignUse":"Unknown"},"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N","cvss_by":"3c1d8aa1-5a33-4ea4-8992-aadd6440af75","poc_count":0,"sources":[{"source":"kev","external_id":"CVE-2026-1603","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2026-1603","severity":null,"published_at":"2026-03-09T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:51+00:00","fetched_at":"2026-10-25T17:39:55+00:00","note":null},{"source":"nvd","external_id":"CVE-2026-1603","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-1603","severity":null,"published_at":"2026-02-10T16:16:10+00:00","modified_at":"2026-06-17T10:16:09+00:00","first_seen_at":"2026-10-23T23:44:51+00:00","fetched_at":"2026-10-23T23:44:51+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}