{"id":"CVE-2025-64393","published":"2026-10-07T09:17:04Z","modified":"2026-10-24T20:10:00Z","title":"This vulnerability in Veeam Backup & Replication allows a Backup Viewer to execute arbitrary code as SYSTEM on the…","vendor":"Veeam","product":"Backup and Replication","tier":"core","eol":null,"description":{"text":"This vulnerability in Veeam Backup & Replication allows a Backup Viewer to execute arbitrary code as SYSTEM on the backup server.","provenance":"source","from":"NVD"},"summary":{"text":"This is a flaw in the Backup Viewer role of Veeam Backup & Replication, where untrusted data is deserialized. An attacker holding a low-privileged Backup Viewer account on the network can execute arbitrary code as SYSTEM on the backup server, with no user interaction required.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T07:20:11Z"},"cvss":{"score":9.4,"severity":"CRITICAL","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","provenance":"source","from":"NVD"},"epss":{"score":0.05199,"percentile":0.9246,"date":"2026-10-29","provenance":"source"},"kev":null,"vulncheckKev":null,"exploited":false,"otx":{"pulseCount":9,"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":"Known_Cve | Oct 8, 2026 | Part 2/2","url":"https://otx.alienvault.com/pulse/6ac65e5b607642608f852c9a","created":"2026-10-07"}],"provenance":"machine"},"cwes":[{"id":"CWE-502","name":"Deserialization of Untrusted Data"}],"references":[{"url":"https://www.veeam.com/KB4934","tags":[]}],"techniques":[],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2025-211039","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-211039","exploited":false,"exploitedSince":null,"provenance":"source"},"exploits":[],"exploitSources":null,"exploitRefs":[],"flow":[],"timeline":[{"date":"2026-10-07","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-64393","provenance":"source"}],"speed":{"daysToPublicExploit":null,"firstExploitFrom":null,"daysToKev":null},"priority":{"score":27.3,"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":18.49,"detail":"percentile 0.9246"},{"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":2.27,"detail":"9 pulses"},{"name":"CVSS severity","points":6.58,"detail":"base score 9.4"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}