{"id":"CVE-2026-41709","published":"2026-07-30T14:16:57Z","modified":"2026-10-29T17:29:11Z","title":"Broadcom VMWare ESX Insufficient Logging Vulnerability","vendor":"Broadcom","product":"VMware ESX","tier":"core","eol":null,"description":{"text":"VMware ESX contains an insufficient logging vulnerability. A malicious administrator could exploit this issue to perform certain operations without them being logged.","provenance":"source","from":"NVD"},"summary":{"text":"VMware ESX from Broadcom contains an insufficient logging flaw, meaning certain operations are not recorded in the product's logs. An attacker who already holds administrator-level privileges on the affected system, with no user interaction required, could perform those operations without leaving a log trail.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-29T07:11:28Z"},"cvss":{"score":2.7,"severity":"LOW","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N","provenance":"source","from":"NVD"},"epss":{"score":0.00689,"percentile":0.52718,"date":"2026-10-30","provenance":"source"},"kev":{"dateAdded":"2026-10-28","dueDate":"2026-11-11","ransomware":false,"requiredAction":"Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.","notes":"https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/38017 ; ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-41709","provenance":"source"},"vulncheckKev":{"dateAdded":"2026-10-27","exploitedFirstSeen":"2026-10-27","ransomware":false,"evidence":[{"url":"https://www.crowdstrike.com/explore/crowdstrike-content/legal-threat-landscape-report","date":"2026-10-27"},{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2026-10-28"}],"evidenceTotal":2,"provenance":"source"},"exploited":true,"otx":{"pulseCount":10,"pulses":[{"name":"Actively_Exploited_Kev | Oct 31, 2026","url":"https://otx.alienvault.com/pulse/6ae4aefab0c2191cecd41862","created":"2026-10-30"},{"name":"Actively_Exploited_Kev | Oct 30, 2026","url":"https://otx.alienvault.com/pulse/6ae35d889ea92b4ce19c2680","created":"2026-10-29"},{"name":"China-Nexus APT Exploits vCenter CVE-2026-59310/59309 — Babuk-Derived ESXi Ransomware","url":"https://otx.alienvault.com/pulse/6a83f61f30c822a02ff5c8b6","created":"2026-08-18"},{"name":"Active Exploitation of VMware vCenter CVE-2026-59310 (reverse_ssh Persistence)","url":"https://otx.alienvault.com/pulse/6a8152c5d169a79d9e1fc032","created":"2026-08-16"},{"name":"VMware Patches Three Critical Flaws Enabling Authentication Bypass and Virtual Machine Escape","url":"https://otx.alienvault.com/pulse/6a7042b2aacfb34f3660c54a","created":"2026-08-03"},{"name":"VMware VMSA-2026-0006: Critical VM Escape (VMXNET3) and vCenter RCE/Auth Bypass","url":"https://otx.alienvault.com/pulse/6a702f707b7027bba5e5dbcc","created":"2026-08-03"},{"name":"VMware VMSA-2026-0006: vCenter Auth Bypass/RCE and ESX VM Escape","url":"https://otx.alienvault.com/pulse/6a702f7029de9ff2353b37b5","created":"2026-08-03"},{"name":"Three Critical VMware Flaws Allow Auth Bypass, Code Execution, and VM Escape [The Hacker News]","url":"https://otx.alienvault.com/pulse/6a6d99606f7a43e03bafd53c","created":"2026-08-01"},{"name":"Kritieke kwetsbaarheden in VMware vCenter en ESX-producten: update onmiddellijk [Nationaal Cyber Security Centrum - Nieuwsberichten]","url":"https://otx.alienvault.com/pulse/6a6cf065337e836201e85004","created":"2026-07-31"},{"name":"VMware fixes three critical flaws allowing auth bypass, VM escapes [BleepingComputer]","url":"https://otx.alienvault.com/pulse/6a6caa543057915249981808","created":"2026-07-31"}],"provenance":"machine"},"cwes":[{"id":"CWE-778","name":"Insufficient Logging"}],"references":[{"url":"https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/38017","tags":["Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-41709","tags":["US Government Resource"]}],"techniques":[{"id":"T1078","name":"Valid Accounts","tactics":["initial-access","persistence","privilege-escalation","stealth"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: Requires privileged administrator credentials already held","mappingType":"exploitation_technique","evidence":[{"from":"description","quote":"A malicious administrator could exploit this issue to perform certain operations without them being logged","start":59,"end":165}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2026-51107","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-51107","exploited":true,"exploitedSince":"2026-10-28","provenance":"source"},"exploits":[],"exploitSources":null,"exploitRefs":[],"flow":[{"stage":"exploitation","techniques":["T1078"],"provenance":"ai"}],"timeline":[{"date":"2026-07-30","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-41709","provenance":"source"},{"date":"2026-10-27","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://www.crowdstrike.com/explore/crowdstrike-content/legal-threat-landscape-report","provenance":"source"},{"date":"2026-10-28","kind":"kev","label":"Added to CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","provenance":"source"},{"date":"2026-10-28","kind":"euvd-exploited","label":"ENISA EUVD: exploited","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-51107","provenance":"source"}],"speed":{"daysToPublicExploit":null,"firstExploitFrom":null,"daysToKev":90},"priority":{"score":59.8,"factors":[{"name":"In a KEV catalog","points":35.0,"detail":"listed in CISA KEV and VulnCheck KEV"},{"name":"Recent KEV listing","points":10.0,"detail":"added 4 days ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":10.54,"detail":"percentile 0.5272"},{"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":2.36,"detail":"10 pulses"},{"name":"CVSS severity","points":1.89,"detail":"base score 2.7"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}