{"id":"CVE-2025-4427","published":"2025-05-13T16:15:32Z","modified":"2026-06-17T09:33:13Z","title":"Ivanti Endpoint Manager Mobile (EPMM) Authentication Bypass Vulnerability","vendor":"Ivanti","product":"Endpoint Manager Mobile (EPMM)","tier":"core","eol":null,"description":{"text":"An authentication bypass in the API component of Ivanti Endpoint Manager Mobile 12.5.0.0 and prior allows attackers to access protected resources without proper credentials via the API.","provenance":"source","from":"NVD"},"summary":{"text":"Ivanti Endpoint Manager Mobile (EPMM) 12.5.0.0 and prior contains an authentication bypass in its API component. An attacker with network access can reach protected resources through the API without valid credentials, requiring no privileges and no user interaction.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T07:10:50Z"},"cvss":{"score":7.5,"severity":"HIGH","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","provenance":"source","from":"NVD"},"epss":{"score":0.99927,"percentile":0.99969,"date":"2026-10-29","provenance":"source"},"kev":{"dateAdded":"2025-05-19","dueDate":"2025-06-09","ransomware":false,"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.","notes":"https://forums.ivanti.com/s/article/Security-Advisory-Ivanti-Endpoint-Manager-Mobile-EPMM ; https://nvd.nist.gov/vuln/detail/CVE-2025-4427","provenance":"source"},"vulncheckKev":{"dateAdded":"2025-05-13","exploitedFirstSeen":"2025-05-13","ransomware":false,"evidence":[{"url":"https://forums.ivanti.com/s/article/Security-Advisory-Ivanti-Endpoint-Manager-Mobile-EPMM","date":"2025-05-13"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2025-05-15&host_type=src&vulnerability=cve-2025-4427","date":"2025-05-15"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2025-05-16&host_type=src&vulnerability=cve-2025-4427","date":"2025-05-16"},{"url":"https://www.greynoise.io/blog/ivanti-epmm-zero-days-reconnaissance-exploitation","date":"2025-05-16"},{"url":"https://www.rapid7.com/blog/post/2025/05/16/etr-ivanti-epmm-exploit-chain-exploited-in-the-wild/","date":"2025-05-16"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2025-05-17&host_type=src&vulnerability=cve-2025-4427","date":"2025-05-17"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2025-05-18&host_type=src&vulnerability=cve-2025-4427","date":"2025-05-18"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2025-05-19&host_type=src&vulnerability=cve-2025-4427","date":"2025-05-19"},{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2025-05-19"},{"url":"https://x.com/Shadowserver/status/1924421986953891898","date":"2025-05-19"}],"evidenceTotal":394,"provenance":"source"},"exploited":true,"otx":{"pulseCount":50,"pulses":[{"name":"Actively_Exploited_Kev | Oct 30, 2026","url":"https://otx.alienvault.com/pulse/6ae35d889ea92b4ce19c2680","created":"2026-10-29"},{"name":"Actively_Exploited_Kev | Oct 29, 2026","url":"https://otx.alienvault.com/pulse/6ae20c1db17e7057ae7d9ad1","created":"2026-10-28"},{"name":"Actively_Exploited_Kev | Oct 28, 2026","url":"https://otx.alienvault.com/pulse/6ae0ba7e0e2a97ff7b218819","created":"2026-10-27"},{"name":"Actively_Exploited_Kev | Oct 27, 2026","url":"https://otx.alienvault.com/pulse/6adf68b85c3e852f3c111d18","created":"2026-10-26"},{"name":"Actively_Exploited_Kev | Oct 24, 2026","url":"https://otx.alienvault.com/pulse/6adb740e397c3ad4799aa4cd","created":"2026-10-23"},{"name":"Actively_Exploited_Kev | Oct 23, 2026","url":"https://otx.alienvault.com/pulse/6ada236fcfba2dfa730ea482","created":"2026-10-22"},{"name":"Actively_Exploited_Kev | Oct 22, 2026","url":"https://otx.alienvault.com/pulse/6ad8d33a077cbb5cab524d80","created":"2026-10-21"},{"name":"Actively_Exploited_Kev | Oct 21, 2026","url":"https://otx.alienvault.com/pulse/6ad78130c4d1ac2be83a8b6d","created":"2026-10-20"},{"name":"Actively_Exploited_Kev | Oct 20, 2026","url":"https://otx.alienvault.com/pulse/6ad62f63c24a405a3423cc13","created":"2026-10-19"},{"name":"Actively_Exploited_Kev | Oct 19, 2026","url":"https://otx.alienvault.com/pulse/6ad4dda174e5797d0bd238b7","created":"2026-10-18"}],"provenance":"machine"},"cwes":[{"id":"CWE-288","name":"Authentication Bypass Using an Alternate Path or Channel"}],"references":[{"url":"https://forums.ivanti.com/s/article/Security-Advisory-Ivanti-Endpoint-Manager-Mobile-EPMM","tags":["Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-4427","tags":["US Government Resource"]}],"techniques":[{"id":"T1190","name":"Exploit Public-Facing Application","tactics":["initial-access"],"provenance":"source","basis":"ctid-kev","bases":["ctid-kev"],"basisDetail":"CTID Mappings Explorer KEV 07/28/2025 (ATT&CK 16.1); capability: Authentication Bypass","mappingType":"exploitation_technique","evidence":[],"comment":"By sending a specially crafted HTTP GET request to the Ivanti EPMM endpoint, an attacker can bypass the authentication mechanisms. This can be chained with CVE-2025-4428 to achieve remote code execution.","confidence":"high"},{"id":"T1203","name":"Exploitation for Client Execution","tactics":["execution"],"provenance":"source","basis":"ctid-kev","bases":["ctid-kev"],"basisDetail":"CTID Mappings Explorer KEV 07/28/2025 (ATT&CK 16.1); capability: Authentication Bypass","mappingType":"exploitation_technique","evidence":[],"comment":"By sending a specially crafted HTTP GET request to the Ivanti EPMM endpoint, an attacker can bypass the authentication mechanisms. This can be chained with CVE-2025-4428 to achieve remote code execution.","confidence":"low","confidenceNote":"server-side bug exploitable without user interaction; client-execution technique does not fit"},{"id":"T1059","name":"Command and Scripting Interpreter","tactics":["execution"],"provenance":"source","basis":"ctid-kev","bases":["ctid-kev"],"basisDetail":"CTID Mappings Explorer KEV 07/28/2025 (ATT&CK 16.1); capability: Authentication Bypass","mappingType":"primary_impact","evidence":[],"comment":"By sending a specially crafted HTTP GET request to the Ivanti EPMM endpoint, an attacker can bypass the authentication mechanisms. This can be chained with CVE-2025-4428 to achieve remote code execution.","confidence":"high"},{"id":"T1505.003","name":"Web Shell","tactics":["persistence"],"provenance":"source","basis":"ctid-kev","bases":["ctid-kev"],"basisDetail":"CTID Mappings Explorer KEV 07/28/2025 (ATT&CK 16.1); capability: Authentication Bypass","mappingType":"secondary_impact","evidence":[],"comment":"By sending a specially crafted HTTP GET request to the Ivanti EPMM endpoint, an attacker can bypass the authentication mechanisms. This can be chained with CVE-2025-4428 to achieve remote code execution.","confidence":"high"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2025-14388","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-14388","exploited":true,"exploitedSince":"2025-05-19","provenance":"source"},"exploits":[{"id":52421,"url":"https://www.exploit-db.com/exploits/52421","title":"Ivanti Endpoint Manager Mobile 12.5.0.0 - Authentication Bypass","type":"remote","platform":"multiple","date":"2025-08-26","verified":false,"provenance":"source"}],"exploitSources":{"exploitdb":{"count":1,"earliest":"2025-08-26"},"pocGithub":{"count":2,"skipped":0,"earliest":"2025-05-15","earliestUrl":"https://github.com/watchtowrlabs/watchTowr-vs-Ivanti-EPMM-CVE-2025-4427-CVE-2025-4428","repos":[{"name":"watchtowrlabs/watchTowr-vs-Ivanti-EPMM-CVE-2025-4427-CVE-2025-4428","url":"https://github.com/watchtowrlabs/watchTowr-vs-Ivanti-EPMM-CVE-2025-4427-CVE-2025-4428","stars":11,"created":"2025-05-15"},{"name":"rxerium/CVE-2025-4427-CVE-2025-4428","url":"https://github.com/rxerium/CVE-2025-4427-CVE-2025-4428","stars":0,"created":"2025-08-31"}]},"metasploit":[{"name":"Ivanti EPMM Authentication Bypass for Expression Language Remote Code Execution","module":"exploit/multi/http/ivanti_epmm_rce_cve_2025_4427_4428","type":"exploit","disclosureDate":"2025-05-13","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/http/ivanti_epmm_rce_cve_2025_4427_4428.rb"}],"nuclei":[{"id":"CVE-2025-4427","name":"Ivanti Endpoint Manager Mobile - Unauthenticated Remote Code Execution","severity":"critical","path":"http/cves/2025/CVE-2025-4427.yaml","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-4427.yaml"}],"first":{"date":"2025-05-13","source":"Metasploit","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/http/ivanti_epmm_rce_cve_2025_4427_4428.rb"},"provenance":"source"},"detections":{"cveRules":[{"title":"Potential Exploitation of CVE-2025-4427/4428 Ivanti EPMM Pre-Auth RCE","id":"41956f7c-7a6b-46d6-b6bb-da6eb2e83fbe","level":"high","status":"experimental","path":"rules-emerging-threats/2025/Exploits/CVE-2025-4427/web_invanti_epmm_cve_2025_4427_and_cve_2025_4428.yml","url":"https://github.com/SigmaHQ/sigma/blob/master/rules-emerging-threats/2025/Exploits/CVE-2025-4427/web_invanti_epmm_cve_2025_4427_and_cve_2025_4428.yml","techniques":["T1190","T1203"]}]},"exploitRefs":[],"flow":[{"stage":"exploitation","techniques":["T1190"],"provenance":"source"},{"stage":"primary","techniques":["T1059"],"provenance":"source"},{"stage":"secondary","techniques":["T1505.003"],"provenance":"source"},{"stage":"related","techniques":["T1203"],"provenance":"source","lowConfidence":true}],"timeline":[{"date":"2025-05-13","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-4427","provenance":"source"},{"date":"2025-05-13","kind":"exploit-public","label":"First public exploit: Metasploit; later: PoC-in-GitHub 2025-05-15, Exploit-DB 2025-08-26","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/http/ivanti_epmm_rce_cve_2025_4427_4428.rb","provenance":"source"},{"date":"2025-05-13","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://forums.ivanti.com/s/article/Security-Advisory-Ivanti-Endpoint-Manager-Mobile-EPMM","provenance":"source"},{"date":"2025-05-19","kind":"kev","label":"Added to CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","provenance":"source"},{"date":"2025-05-19","kind":"euvd-exploited","label":"ENISA EUVD: exploited","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-14388","provenance":"source"}],"speed":{"daysToPublicExploit":0,"firstExploitFrom":"Metasploit","daysToKev":6},"priority":{"score":68.2,"factors":[{"name":"In a KEV catalog","points":35.0,"detail":"listed in CISA KEV and VulnCheck KEV"},{"name":"Recent KEV listing","points":0.0,"detail":"added 535 days ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":19.99,"detail":"percentile 0.9997"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":5.0,"detail":"1 Exploit-DB entry; 2 PoC-in-GitHub repos; 1 Metasploit module; 1 nuclei template"},{"name":"Mentioned in OTX pulses","points":3.0,"detail":"50 pulses"},{"name":"CVSS severity","points":5.25,"detail":"base score 7.5"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}