{"id":"CVE-2025-30414","kind":"vulnerability","aliases":["CVE-2025-30414"],"related":[],"title":"Acronis Cyber Protect agents: local privilege escalation through improper authentication","description":"Local privilege escalation due to improper authentication. The following products are affected: Acronis Cyber Protect Cloud Agent (Windows) before build 42569, Acronis Cyber Protect 17 (Windows) before build 42587.","summary":"Acronis Cyber Protect Cloud Agent and Cyber Protect 17 on Windows have an authentication flaw that lets a local user gain higher privileges. The sources do not describe the exact mechanism beyond improper authentication.","severity":"high","cvss":7.1,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["acronis","endpoint-agents","other","windows"],"not_affected_if":["fixed-build-installed","product-not-installed"],"how_to_check":"- Check the installed Acronis Cyber Protect Cloud Agent build number on Windows hosts, looking for builds below `42569`.\n- Check the installed Acronis Cyber Protect 17 build number on Windows hosts, looking for builds below `42587`.","fix":"- Update Acronis Cyber Protect Cloud Agent (Windows) to build `42569` or later.\n- Update Acronis Cyber Protect 17 (Windows) to build `42587` or later.","status":"open","published_at":"2026-10-28T11:17:12+00:00","first_seen_at":"2026-10-28T11:32:27+00:00","triaged_at":"2026-10-28T11:33:28+00:00","updated_at":"2026-10-28T11:33:28+00:00","category":"other","confidence":0.6,"triage":{"at":"2026-10-28T11:33:28Z","model":"claude-haiku-5-5","output":{"fix":"- Update Acronis Cyber Protect Cloud Agent (Windows) to build `42569` or later.\n- Update Acronis Cyber Protect 17 (Windows) to build `42587` or later.","reach":"local","title":"Acronis Cyber Protect agents: local privilege escalation through improper authentication","impact":"high","summary":"Acronis Cyber Protect Cloud Agent and Cyber Protect 17 on Windows have an authentication flaw that lets a local user gain higher privileges. The sources do not describe the exact mechanism beyond improper authentication.","category":"other","nicknames":[],"who_cares":["windows","acronis","endpoint-agents"],"confidence":0.6,"needs_auth":"yes","worst_case":"A local user gains elevated privileges on the Windows machine.","analyst_note":"Confirm the exact auth flaw and whether the affected component runs as SYSTEM, using the NVD entry and the Acronis security advisory.","how_to_check":"- Check the installed Acronis Cyber Protect Cloud Agent build number on Windows hosts, looking for builds below `42569`.\n- Check the installed Acronis Cyber Protect 17 build number on Windows hosts, looking for builds below `42587`.","needs_analyst":true,"not_affected_if":["product-not-installed","fixed-build-installed"],"who_is_affected":"Windows hosts running the Acronis Cyber Protect Cloud Agent or Acronis Cyber Protect 17 before the fixed builds are exposed. An attacker needs a local account on the machine, so shared or multi-user Windows systems carry more risk than single-user ones. Hosts without these products installed can skip it.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000637,"input_tokens":3271,"output_tokens":620,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-2025':12A,15A '-30414':13A,16A '17':31B,81C '42569':77C '42587':85C 'acroni':1A,17B,23B,69C,78C 'affect':68C 'agent':4A,20B,27B,73C 'authent':10A,36B,56B,63C 'beyond':54B 'build':76C,84C 'cloud':26B,72C 'cve':11A,14A 'cyber':2A,24B,29B,70C,79C 'describ':50B 'due':60C 'endpoint':19B 'endpoint-ag':18B 'escal':7A,59C 'exact':52B 'flaw':37B 'follow':65C 'gain':43B 'higher':44B 'improp':9A,55B,62C 'let':39B 'local':5A,41B,57C 'mechan':53B 'privileg':6A,45B,58C 'product':66C 'protect':3A,25B,30B,71C,80C 'sourc':47B 'user':42B 'window':22B,33B,74C,82C","nicknames":[],"mitigations":[],"who_affected":"Windows hosts running the Acronis Cyber Protect Cloud Agent or Acronis Cyber Protect 17 before the fixed builds are exposed. An attacker needs a local account on the machine, so shared or multi-user Windows systems carry more risk than single-user ones. Hosts without these products installed can skip it.","tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-28T11:17:12+00:00","kev":null,"cvss_vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","cvss_by":"security@acronis.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2025-30414","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-30414","severity":null,"published_at":"2026-10-28T11:17:12+00:00","modified_at":"2026-10-28T11:17:12+00:00","first_seen_at":"2026-10-28T11:32:27+00:00","fetched_at":"2026-10-28T11:32:27+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}