{"id":"CVE-2025-22226","published":"2025-03-04T12:15:33Z","modified":"2026-06-17T08:45:44Z","title":"VMware ESXi, Workstation, and Fusion Information Disclosure Vulnerability","vendor":"VMware","product":"ESXi, Workstation, and Fusion","tier":"core","eol":null,"description":{"text":"VMware ESXi, Workstation, and Fusion contain an information disclosure vulnerability due to an out-of-bounds read in HGFS. A malicious actor with administrative privileges to a virtual machine may be able to exploit this issue to leak memory from the vmx process.","provenance":"source","from":"NVD"},"summary":{"text":"The out-of-bounds read vulnerability in the HGFS component of VMware ESXi, Workstation, and Fusion causes these products to disclose information. An attacker with administrative privileges on a virtual machine, acting locally on the host, can leak memory from the vmx process.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T07:14:46Z"},"cvss":{"score":6.0,"severity":"MEDIUM","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N","provenance":"source","from":"NVD"},"epss":{"score":0.01633,"percentile":0.76204,"date":"2026-10-29","provenance":"source"},"kev":{"dateAdded":"2025-03-04","dueDate":"2025-03-25","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://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/25390 ; https://nvd.nist.gov/vuln/detail/CVE-2025-22226","provenance":"source"},"vulncheckKev":{"dateAdded":"2025-03-04","exploitedFirstSeen":"2025-03-04","ransomware":true,"evidence":[{"url":"https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/25390","date":"2025-03-04"},{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2025-03-04"},{"url":"https://blog.qualys.com/vulnerabilities-threat-research/2025/05/08/inside-lockbit-defense-lessons-from-the-leaked-lockbit-negotiations","date":"2025-05-08"},{"url":"https://github.com/vmware/vcf-security-and-compliance-guidelines/tree/main/security-advisories/vmsa-2025-0004","date":"2025-07-15"},{"url":"https://slcyber.io/whitepapers-reports/an-escalation-in-attacks-the-ransomware-landscape-in-h1-2025/","date":"2025-09-25"},{"url":"https://www.huntress.com/blog/esxi-vm-escape-exploit","date":"2026-01-07"},{"url":"https://www.loginsoft.com/reports/annually/vulnerability-intelligence-report-2025","date":"2026-01-20"},{"url":"https://wwv.vulncheck.com/2026-vulncheck-exploit-intelligence-report","date":"2026-02-25"}],"evidenceTotal":8,"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-125","name":"Out-of-bounds Read"}],"references":[{"url":"https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/25390","tags":["Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-22226","tags":["US Government Resource"]}],"techniques":[{"id":"T1005","name":"Data from Local System","tactics":["collection"],"provenance":"source","basis":"ctid-kev","bases":["ctid-kev"],"basisDetail":"CTID Mappings Explorer KEV 07/28/2025 (ATT&CK 16.1); capability: Out-of-Bounds (Read and Write)","mappingType":"primary_impact","evidence":[],"comment":"This vulnerability, present in VMWare ESXi, Workstation, and Fusion, is the result of an out-of-bounds read in the Host Guest File System (HGFS) and can be exploited by attackers with administrative privileges to disclose sensitive information from the VMX process. An attacker could then move into the hypervisor itself.","confidence":"high"},{"id":"T1611","name":"Escape to Host","tactics":["privilege-escalation"],"provenance":"source","basis":"ctid-kev","bases":["ctid-kev"],"basisDetail":"CTID Mappings Explorer KEV 07/28/2025 (ATT&CK 16.1); capability: Out-of-Bounds (Read and Write)","mappingType":"secondary_impact","evidence":[],"comment":"This vulnerability, present in VMWare ESXi, Workstation, and Fusion, is the result of an out-of-bounds read in the Host Guest File System (HGFS) and can be exploited by attackers with administrative privileges to disclose sensitive information from the VMX process. An attacker could then move into the hypervisor itself.","confidence":"high"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2025-7605","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-7605","exploited":true,"exploitedSince":"2025-03-04","provenance":"source"},"exploits":[],"exploitSources":null,"exploitRefs":[],"flow":[{"stage":"primary","techniques":["T1005"],"provenance":"source"},{"stage":"secondary","techniques":["T1611"],"provenance":"source"}],"timeline":[{"date":"2025-03-04","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-22226","provenance":"source"},{"date":"2025-03-04","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/25390","provenance":"source"},{"date":"2025-03-04","kind":"kev","label":"Added to CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","provenance":"source"},{"date":"2025-03-04","kind":"euvd-exploited","label":"ENISA EUVD: exploited","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-7605","provenance":"source"}],"speed":{"daysToPublicExploit":null,"firstExploitFrom":null,"daysToKev":0},"priority":{"score":67.4,"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 605 days ago"},{"name":"Known ransomware use","points":10.0,"detail":"CISA KEV and VulnCheck KEV: Known"},{"name":"EPSS percentile","points":15.24,"detail":"percentile 0.7620"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":0.0,"detail":"none found"},{"name":"Mentioned in OTX pulses","points":3.0,"detail":"50 pulses"},{"name":"CVSS severity","points":4.2,"detail":"base score 6.0"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}