{"id":"CVE-2026-90725","kind":"vulnerability","aliases":["CVE-2026-90725"],"related":[],"title":"Dell PowerProtect Data Domain: stack buffer overflow allows 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 Stack-based Buffer Overflow vulnerability. A high privileged attacker with remote access could potentially exploit this vulnerability, leading to Denial of service.","summary":"Dell PowerProtect Data Domain appliances running several feature and LTS release lines contain a stack-based buffer overflow. A high-privileged attacker with remote access can crash the appliance, causing denial of service.","severity":"medium","cvss":4.9,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["backup","data-domain","dell","infrastructure","powerprotect"],"not_affected_if":["auth-required","outside-listed-versions"],"how_to_check":"- Check the installed Data Domain OS version against the affected ranges: Feature Release `7.7.1.0` through `8.8`, LTS2024 `7.13.1.0` through `7.13.1.80`, LTS2025 `8.3.1.0` through `8.3.1.40`, LTS2026 `8.6.1.0` through `8.6.1.20`.","fix":"- Move Data Domain OS to a fixed release from Dell's advisory for CVE-2026-90725; the sources do not name the fixed versions.","status":"open","published_at":"2026-10-27T14:17:04+00:00","first_seen_at":"2026-10-27T14:32:26+00:00","triaged_at":"2026-10-27T14:33:14+00:00","updated_at":"2026-10-27T14:33:14+00:00","category":"infrastructure","confidence":0.6,"triage":{"at":"2026-10-27T14:33:14Z","model":"claude-haiku-5-5","output":{"fix":"- Move Data Domain OS to a fixed release from Dell's advisory for CVE-2026-90725; the sources do not name the fixed versions.","reach":"network","title":"Dell PowerProtect Data Domain: stack buffer overflow allows denial of service","impact":"low","summary":"Dell PowerProtect Data Domain appliances running several feature and LTS release lines contain a stack-based buffer overflow. A high-privileged attacker with remote access can crash the appliance, causing denial of service.","category":"infrastructure","nicknames":[],"who_cares":["dell","powerprotect","data-domain","backup"],"confidence":0.6,"needs_auth":"yes","worst_case":"Attacker crashes the appliance, causing denial of service for backups","analyst_note":"Fixed version numbers and Dell advisory URL are not in the sources; find the Dell security advisory for CVE-2026-90725 to confirm the patched releases.","how_to_check":"- Check the installed Data Domain OS version against the affected ranges: Feature Release `7.7.1.0` through `8.8`, LTS2024 `7.13.1.0` through `7.13.1.80`, LTS2025 `8.3.1.0` through `8.3.1.40`, LTS2026 `8.6.1.0` through `8.6.1.20`.","needs_analyst":true,"not_affected_if":["auth-required","outside-listed-versions"],"who_is_affected":"Operators of Dell PowerProtect Data Domain backup appliances on the affected OS release lines. The attacker must already hold high privileges and have remote access, so exposure is limited to administrators or accounts with elevated rights on the management path. Appliances outside the listed version ranges can skip it.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000656,"input_tokens":3413,"output_tokens":630,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-2026':13A,16A '-90725':14A,17A '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':51B,102C 'allow':8A 'applianc':29B,55B 'attack':48B,99C 'backup':18B 'base':41B,92C 'buffer':6A,42B,93C 'caus':56B 'contain':37B,88C 'could':103C 'crash':53B 'cve':12A,15A 'data':3A,20B,27B,62C 'data-domain':19B 'dell':1A,22B,25B,60C 'denial':9A,57B,110C 'domain':4A,21B,28B,63C 'exploit':105C 'featur':32B,64C 'high':46B,97C 'high-privileg':45B 'infrastructur':23B 'lead':108C 'line':36B 'lts':34B 'lts2024':70C 'lts2025':76C 'lts2026':82C 'overflow':7A,43B,94C 'potenti':104C 'powerprotect':2A,24B,26B,61C 'privileg':47B,98C 'releas':35B,65C,71C,77C,83C 'remot':50B,101C 'run':30B 'servic':11A,59B,112C 'sever':31B 'stack':5A,40B,91C 'stack-bas':39B,90C 'version':66C,72C,78C,84C 'vulner':95C,107C","nicknames":[],"mitigations":[],"who_affected":"Operators of Dell PowerProtect Data Domain backup appliances on the affected OS release lines. The attacker must already hold high privileges and have remote access, so exposure is limited to administrators or accounts with elevated rights on the management path. Appliances outside the listed version ranges can skip it.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-27T14:17:04+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H","cvss_by":"security_alert@emc.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-90725","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90725","severity":null,"published_at":"2026-10-27T14:17:04+00:00","modified_at":"2026-10-27T14:17:04+00:00","first_seen_at":"2026-10-27T14:32:26+00:00","fetched_at":"2026-10-27T14:32:26+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"}