{"id":"CVE-2026-59346","published":"2026-10-07T06:16:35Z","modified":"2026-10-07T15:58:17Z","title":"VMware Workstation and Fusion contain an integer-overflow vulnerability","vendor":"VMware","product":"VMware Workstation","tier":"core","eol":null,"description":{"text":"VMware Workstation and Fusion contain an integer-overflow vulnerability. A malicious actor with local administrative privileges on a virtual machine with VMXNET3 virtual network adapter may exploit this issue to execute code on the host.\n\nAffected versions:\n- VMware Workstation: 25H2, 26H1 (fixed in 26H1u1)\n- VMware Fusion: 25H2, 26H1 (fixed in 26H1u1)","provenance":"source","from":"NVD"},"summary":{"text":"VMware Workstation and Fusion contain an integer-overflow flaw in the VMXNET3 virtual network adapter. An attacker who already holds local administrative privileges inside a virtual machine that uses this adapter can exploit it to execute code on the host.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T07:21:29Z"},"cvss":{"score":9.3,"severity":"CRITICAL","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","provenance":"source","from":"NVD"},"epss":{"score":0.00408,"percentile":0.3507,"date":"2026-10-30","provenance":"source"},"kev":null,"vulncheckKev":null,"exploited":false,"otx":{"pulseCount":14,"pulses":[{"name":"Known_Cve | Oct 16, 2026 | Part 1/3","url":"https://otx.alienvault.com/pulse/6ad0e933fc9a5a47b66d7921","created":"2026-10-15"},{"name":"Known_Cve | Oct 15, 2026 | Part 1/3","url":"https://otx.alienvault.com/pulse/6acf98726e4260f2f2ba3d49","created":"2026-10-14"},{"name":"Known_Cve | Oct 14, 2026 | Part 1/3","url":"https://otx.alienvault.com/pulse/6ace466c18a71dd7afa3f788","created":"2026-10-13"},{"name":"Known_Cve | Oct 13, 2026 | Part 1/2","url":"https://otx.alienvault.com/pulse/6accf723f346ce4b8a50d55a","created":"2026-10-12"},{"name":"Known_Cve | Oct 12, 2026 | Part 1/2","url":"https://otx.alienvault.com/pulse/6acba8a68a86c4d9508005a7","created":"2026-10-11"},{"name":"Known_Cve | Oct 11, 2026 | Part 2/2","url":"https://otx.alienvault.com/pulse/6aca554c34feb0ce115b09d6","created":"2026-10-10"},{"name":"Known_Cve | Oct 10, 2026 | Part 2/2","url":"https://otx.alienvault.com/pulse/6ac90361476f45b4b982597d","created":"2026-10-09"},{"name":"Known_Cve | Oct 9, 2026 | Part 2/2","url":"https://otx.alienvault.com/pulse/6ac7b1a3f215e7af4290dc2e","created":"2026-10-08"},{"name":"Broadcom Patches Integer Overflow and Buffer Overflow Flaws in VMware Workstation and Fusion","url":"https://otx.alienvault.com/pulse/6ac6f11f3ccc3781bb316546","created":"2026-10-08"},{"name":"Known_Cve | Oct 8, 2026 | Part 2/2","url":"https://otx.alienvault.com/pulse/6ac65e5b607642608f852c9a","created":"2026-10-07"}],"provenance":"machine"},"cwes":[{"id":"CWE-190","name":"Integer Overflow or Wraparound"}],"references":[{"url":"https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/security-advisories/0/38288","tags":[]}],"techniques":[],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2026-94168","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-94168","exploited":false,"exploitedSince":null,"provenance":"source"},"exploits":[],"exploitSources":{"pocGithub":{"count":1,"skipped":0,"earliest":"2026-09-15","earliestUrl":"https://github.com/0xCyberstan/CVE-2026-59346-POC","repos":[{"name":"0xCyberstan/CVE-2026-59346-POC","url":"https://github.com/0xCyberstan/CVE-2026-59346-POC","stars":13,"created":"2026-09-15"}]},"first":{"date":"2026-09-15","source":"PoC-in-GitHub","url":"https://github.com/0xCyberstan/CVE-2026-59346-POC"},"provenance":"source"},"exploitRefs":[],"flow":[],"timeline":[{"date":"2026-09-15","kind":"exploit-public","label":"First public exploit: PoC-in-GitHub","url":"https://github.com/0xCyberstan/CVE-2026-59346-POC","provenance":"source"},{"date":"2026-10-07","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-59346","provenance":"source"}],"speed":{"daysToPublicExploit":null,"firstExploitFrom":"PoC-in-GitHub","daysToKev":null},"priority":{"score":21.2,"factors":[{"name":"In a KEV catalog","points":0.0,"detail":"not listed"},{"name":"Recent KEV listing","points":0.0,"detail":"not listed"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":7.01,"detail":"percentile 0.3507"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":5.0,"detail":"1 PoC-in-GitHub repo"},{"name":"Mentioned in OTX pulses","points":2.67,"detail":"14 pulses"},{"name":"CVSS severity","points":6.51,"detail":"base score 9.3"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}