{"id":"CVE-2026-107523","kind":"vulnerability","aliases":["CVE-2026-107523"],"related":[],"title":"Dell PowerStore: integer overflow lets nearby attacker bypass volume bounds checks","description":"Dell PowerStore contains an integer overflow vulnerability. An adjacent attacker could exploit it to bypass volume bounds checks, potentially leading to data destruction or denial of service.","summary":"Dell PowerStore storage arrays contain an integer overflow that lets an attacker bypass volume bounds checks. A successful attack could destroy data or cause denial of service.","severity":"high","cvss":8.7,"epss":null,"exploited":false,"exploited_at":null,"products":[{"name":"PowerStoreT OS","fixed":["5.1.0.0-2798105"],"affected":">= 5.1.0.0, < 5.1.0.0-2798105","ecosystem":"vendor"}],"ecosystems":[],"tags":["dell-powerstore","on-prem","self-hosted","storage","vendor"],"not_affected_if":["managed-hosting"],"how_to_check":"In PowerStore Manager (Settings > Software), or via the REST API, read the PowerStoreT OS version. Exposed if it is 5.1.x earlier than 5.1.0.0-2798105 on any model listed in DSA-2026-479. Adjacent-network access (same L2/storage network) is needed to attack it.","fix":"Update PowerStoreT OS to 5.1.0.0-2798105 or later (per DSA-2026-479; version as reported by securityonline and Eventus, not visible in the part of Dell's page I could read).","status":"open","published_at":"2026-11-13T15:17:29+00:00","first_seen_at":"2026-11-13T15:46:15+00:00","triaged_at":"2026-11-13T15:48:14+00:00","updated_at":"2026-11-13T15:48:56+00:00","category":"vendor","confidence":0.8,"triage":{"at":"2026-11-13T15:48:14Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"network","title":"Dell PowerStore: integer overflow lets nearby attacker bypass volume bounds checks","impact":"high","summary":"Dell PowerStore storage arrays contain an integer overflow that lets an attacker bypass volume bounds checks. A successful attack could destroy data or cause denial of service.","audience":"businesses","category":"vendor","nicknames":[],"who_cares":["dell-powerstore","storage"],"confidence":0.6,"fix_status":"unknown","needs_auth":"unknown","worst_case":"Attacker destroys volume data or crashes the storage array","analyst_note":"Check Dell's security advisory for affected PowerStore versions, fixed releases and any workaround; NVD alone does not give the ranges.","how_to_check":"unknown","plain_action":"","product_name":"","needs_analyst":true,"not_affected_if":[],"who_is_affected":"Organizations running Dell PowerStore storage appliances. The sources do not say which PowerStore versions are affected or what configuration is required, so the exposure cannot be narrowed further.","user_interaction":"no","product_ecosystem":"","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000656,"input_tokens":4499,"output_tokens":412,"severity_before":"high"},"analyst_status":"done","analyst_note":"Check Dell's security advisory for affected PowerStore versions, fixed releases and any workaround; NVD alone does not give the ranges.","search":"'-107523':14A,17A '-2026':13A,16A 'adjac':66C 'array':34B 'attack':7A,42B,49B,67C 'bound':10A,45B,74C 'bypass':8A,43B,72C 'caus':54B 'check':11A,46B,75C 'contain':35B,60C 'could':50B,68C 'cve':12A,15A 'data':52B,79C 'dell':1A,21B,31B,58C 'dell-powerstor':20B 'denial':55B,82C 'destroy':51B 'destruct':80C 'exploit':69C 'host':28B 'integ':3A,37B,62C 'lead':77C 'let':5A,40B 'nearbi':6A 'on-prem':23B 'os':19A 'overflow':4A,38B,63C 'potenti':76C 'powerstor':2A,22B,32B,59C 'powerstoret':18A 'prem':25B 'self':27B 'self-host':26B 'servic':57B,84C 'storag':29B,33B 'success':48B 'vendor':30B 'volum':9A,44B,73C 'vulner':64C","nicknames":[],"mitigations":[],"who_affected":"Teams running Dell PowerStore T appliances on PowerStoreT OS 5.1.x earlier than 5.1.0.0-2798105. The attacker must be network-adjacent and have low privileges (CVSS AV:A/PR:L), so the risk is highest where untrusted hosts share the storage or management network. Teams not running PowerStore can skip it.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"pkeys":["os","powerstoretos"],"ptokens":["os","powerstoret"],"labels":["dellpowerstore","high","onprem","selfhosted","storage","vendor"],"campaign_type":null,"search_a":"'-107523':14A,17A '-2026':13A,16A 'attack':7A 'bound':10A 'bypass':8A 'check':11A 'cve':12A,15A 'dell':1A 'integ':3A 'let':5A 'nearbi':6A 'os':19A 'overflow':4A 'powerstor':2A 'powerstoret':18A 'volum':9A","search_b":"'array':34B 'attack':42B,49B 'bound':45B 'bypass':43B 'caus':54B 'check':46B 'contain':35B 'could':50B 'data':52B 'dell':21B,31B 'dell-powerstor':20B 'denial':55B 'destroy':51B 'host':28B 'integ':37B 'let':40B 'on-prem':23B 'overflow':38B 'powerstor':22B,32B 'prem':25B 'self':27B 'self-host':26B 'servic':57B 'storag':29B,33B 'success':48B 'vendor':30B 'volum':44B","search_c":"'adjac':66C 'attack':67C 'bound':74C 'bypass':72C 'check':75C 'contain':60C 'could':68C 'data':79C 'dell':58C 'denial':82C 'destruct':80C 'exploit':69C 'integ':62C 'lead':77C 'overflow':63C 'potenti':76C 'powerstor':59C 'servic':84C 'volum':73C 'vulner':64C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-13T15:17:29+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H","cvss_by":"security_alert@emc.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-107523","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-107523","severity":null,"published_at":"2026-11-13T15:17:29+00:00","modified_at":"2026-11-13T15:17:29+00:00","first_seen_at":"2026-11-13T15:46:15+00:00","fetched_at":"2026-11-13T15:46:15+00:00","note":null},{"source":"analyst","external_id":"CVE-2026-107523:3891","url":"https://www.dell.com/support/kbdoc/en-us/000527640/dsa-2026-479-dell-powerstore-t-security-update-for-multiple-vulnerabilities","severity":null,"published_at":"2026-11-13T15:48:56+00:00","modified_at":"2026-11-13T15:48:56+00:00","first_seen_at":"2026-11-13T15:48:56+00:00","fetched_at":"2026-11-13T15:48:56+00:00","note":"Covered by Dell DSA-2026-479 (44 CVEs). Dell's description confirmed on its page (adjacent attacker, volume bounds bypass, data destruction/DoS). Version range and fix come from secondary write-ups (securityonline, Eventus) because Dell's page was truncated, so nothing is marked verified. No exploitation reported. Workaround reported by Eventus: restrict network access to NAS services (TFTP/NFS) and management interfaces; not tied specifically to this CVE. Lower bound of range is unclear (the 4.x line may also be affected).","cites":["https://www.dell.com/support/kbdoc/en-us/000527640/dsa-2026-479-dell-powerstore-t-security-update-for-multiple-vulnerabilities","https://securityonline.info/dell-powerstore-vulnerabilities-dsa-2026-479/"]}],"documents":[{"id":146567,"url":"https://www.dell.com/support/kbdoc/en-us/000527640/dsa-2026-479-dell-powerstore-t-security-update-for-multiple-vulnerabilities","title":"DSA-2026-479: Dell PowerStore T Security Update for Multiple Vulnerabilities","kind":"advisory","source":"analyst","publisher":null,"text":null,"published_at":null,"relation":"advisory","confidence":null,"note":null},{"id":147271,"url":"https://securityonline.info/dell-powerstore-vulnerabilities-dsa-2026-479/","title":"Dell Patches 44 PowerStore Vulnerabilities (securityonline)","kind":"blog","source":"analyst","publisher":null,"text":null,"published_at":null,"relation":"describes","confidence":null,"note":null}],"disclosures":[],"exploit_sources":[],"notice":"Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai"}