{"id":"CVE-2026-90721","kind":"vulnerability","aliases":["CVE-2026-90721"],"related":[],"title":"Dell PowerProtect Data Domain: path traversal lets a privileged local user cause denial of service","description":"Dell PowerProtect Data Domain, Feature Release versions 7.7.1.0 through 8.8, LTS2024 release versions 7.13.1.0 through 7.13.1.80, LTS2025 release versions 8.3.1.0 through 8.3.1.40, LTS2026 release versions 8.6.1.0 through 8.6.1.20, contain a Path Traversal vulnerability. A high privileged attacker with local access could potentially exploit this vulnerability, leading to Denial of service.","summary":"Several Dell PowerProtect Data Domain release lines contain a path traversal flaw. A high-privileged attacker with local access could use it to cause a denial of service.","severity":"low","cvss":3.4,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["backup-appliance","data-domain","dell","infrastructure","powerprotect"],"not_affected_if":["default-config"],"how_to_check":"- Check the installed Data Domain OS release against the affected ranges in the Dell advisory: 7.7.1.0 through 8.8, 7.13.1.0 through 7.13.1.80, 8.3.1.0 through 8.3.1.40, and 8.6.1.0 through 8.6.1.20.","fix":"- Move to a fixed Data Domain OS release as named in the Dell security advisory; the exact fixed versions are unknown from the sources.","status":"open","published_at":"2026-10-28T09:17:08+00:00","first_seen_at":"2026-10-28T09:32:03+00:00","triaged_at":"2026-10-28T09:34:08+00:00","updated_at":"2026-10-28T09:34:08+00:00","category":"infrastructure","confidence":0.6,"triage":{"at":"2026-10-28T09:34:08Z","model":"claude-haiku-5-5","output":{"fix":"- Move to a fixed Data Domain OS release as named in the Dell security advisory; the exact fixed versions are unknown from the sources.","reach":"local","title":"Dell PowerProtect Data Domain: path traversal lets a privileged local user cause denial of service","impact":"low","summary":"Several Dell PowerProtect Data Domain release lines contain a path traversal flaw. A high-privileged attacker with local access could use it to cause a denial of service.","category":"infrastructure","nicknames":[],"who_cares":["dell","powerprotect","data-domain","backup-appliance"],"confidence":0.6,"needs_auth":"yes","worst_case":"A privileged local user can cause a denial of service on the appliance.","analyst_note":"Confirm the fixed release versions and the Dell advisory link; the sources list only NVD.","how_to_check":"- Check the installed Data Domain OS release against the affected ranges in the Dell advisory: 7.7.1.0 through 8.8, 7.13.1.0 through 7.13.1.80, 8.3.1.0 through 8.3.1.40, and 8.6.1.0 through 8.6.1.20.","needs_analyst":true,"not_affected_if":["default-config"],"who_is_affected":"Owners of Dell PowerProtect Data Domain appliances running one of the listed release lines. Exposure requires a high-privileged local account, so systems with no such local accounts are at lower risk. Appliances on releases outside the listed ranges are not affected.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"low"},"cost_usd":0.000617,"input_tokens":3404,"output_tokens":553,"severity_before":"low"},"analyst_status":null,"analyst_note":null,"search":"'-2026':17A,20A '-90721':18A,21A '7.13.1.0':73C '7.13.1.80':75C '7.7.1.0':67C '8.3.1.0':79C '8.3.1.40':81C '8.6.1.0':85C '8.6.1.20':87C '8.8':69C 'access':50B,99C 'applianc':24B 'attack':47B,96C 'backup':23B 'backup-appli':22B 'caus':12A,55B 'contain':38B,88C 'could':51B,100C 'cve':16A,19A 'data':3A,26B,34B,62C 'data-domain':25B 'dell':1A,28B,32B,60C 'denial':13A,57B,107C 'domain':4A,27B,35B,63C 'exploit':102C 'featur':64C 'flaw':42B 'high':45B,94C 'high-privileg':44B 'infrastructur':29B 'lead':105C 'let':7A 'line':37B 'local':10A,49B,98C 'lts2024':70C 'lts2025':76C 'lts2026':82C 'path':5A,40B,90C 'potenti':101C 'powerprotect':2A,30B,33B,61C 'privileg':9A,46B,95C 'releas':36B,65C,71C,77C,83C 'servic':15A,59B,109C 'sever':31B 'travers':6A,41B,91C 'use':52B 'user':11A 'version':66C,72C,78C,84C 'vulner':92C,104C","nicknames":[],"mitigations":[],"who_affected":"Owners of Dell PowerProtect Data Domain appliances running one of the listed release lines. Exposure requires a high-privileged local account, so systems with no such local accounts are at lower risk. Appliances on releases outside the listed ranges are not affected.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-28T09:17:08+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:L","cvss_by":"security_alert@emc.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-90721","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90721","severity":null,"published_at":"2026-10-28T09:17:08+00:00","modified_at":"2026-10-28T09:17:08+00:00","first_seen_at":"2026-10-28T09:32:03+00:00","fetched_at":"2026-10-28T09:32:03+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"}