{"id":"CVE-2026-79859","kind":"vulnerability","aliases":["CVE-2026-79859"],"related":[],"title":"ArubaOS AOS-8 controllers: buffer overflow lets unauthenticated attackers run code as root","description":"Buffer overflow vulnerabilities exist in the affected interface of AOS-8 that could lead to unauthenticated remote code execution. Successful exploitation could allow an attacker to execute arbitrary code as a privileged user on the underlying operating system.","summary":"ArubaOS AOS-8 wireless controllers have a buffer overflow in an exposed interface. An unauthenticated attacker who reaches it can run arbitrary code as a privileged user on the underlying operating system.","severity":"critical","cvss":9.8,"epss":0.00561,"exploited":false,"exploited_at":null,"products":[{"name":"ArubaOS (AOS-8)","fixed":["8.13.3.1","8.10.0.24"],"affected":">= 8.13.0.0, <= 8.13.3.0; >= 8.10.0.0, <= 8.10.0.23","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["alcatel-lucent-enterprise","aos-8","aruba","arubaos","hpe","infrastructure","network-appliance","rce","self-hosted","unauthenticated","wireless-controller"],"not_affected_if":["version-outside-affected-ranges"],"how_to_check":"Check the running version on the controller with 'show version' and compare it to the affected ranges: 8.13.0.0 to 8.13.3.0 and 8.10.0.0 to 8.10.0.23.","fix":"Upgrade to AOS-8 8.13.3.1 or 8.10.0.24, or later fixed releases.","status":"open","published_at":"2026-10-22T19:17:58+00:00","first_seen_at":"2026-10-23T21:57:32+00:00","triaged_at":"2026-10-23T22:31:58+00:00","updated_at":"2026-10-25T12:38:51+00:00","category":"infrastructure","confidence":0.7,"triage":{"at":"2026-10-23T22:31:58Z","model":"claude-haiku-5-5","output":{"fix":"Upgrade to AOS-8 8.13.3.1 or 8.10.0.24, or later fixed releases.\nunknown","reach":"network","title":"ArubaOS AOS-8 controllers: buffer overflow lets unauthenticated attackers run code as root","impact":"high","summary":"ArubaOS AOS-8 wireless controllers have a buffer overflow in an exposed interface. An unauthenticated attacker who reaches it can run arbitrary code as a privileged user on the underlying operating system.","category":"infrastructure","who_cares":["arubaos","aos-8","wireless-controller","self-hosted"],"confidence":0.7,"needs_auth":"no","worst_case":"Unauthenticated remote code execution as a privileged OS user on the controller.","analyst_note":"Confirm the vulnerable interface and whether it is exposed beyond management networks, using the HPE/Aruba advisory (not in the sources provided); how_to_check is unknown.","how_to_check":"Check the running version on the controller with 'show version' and compare it to the affected ranges: 8.13.0.0 to 8.13.3.0 and 8.10.0.0 to 8.10.0.23.\nunknown","needs_analyst":true,"not_affected_if":["version-outside-affected-ranges"],"user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"critical"},"cost_usd":0.000547,"input_tokens":3045,"output_tokens":485,"severity_before":"critical"},"analyst_status":"done","analyst_note":"Find the affected AOS-8 versions, the vulnerable interface, and the patched release in the NVD entry and the vendor advisory (NVD link is the only source given).","search":"'-2026':15A,18A '-79859':16A,19A '-8':3A,22A,28B,46B,86C 'affect':82C 'alcatel':24B 'alcatel-lucent-enterpris':23B 'allow':98C 'ao':2A,27B,45B,85C 'aos':21A 'applianc':35B 'arbitrari':65B,103C 'aruba':29B 'arubao':1A,30B,44B 'arubaos':20A 'attack':9A,59B,100C 'buffer':5A,51B,76C 'code':11A,66B,93C,104C 'control':4A,43B,48B 'could':88C,97C 'cve':14A,17A 'enterpris':26B 'execut':94C,102C 'exist':79C 'exploit':96C 'expos':55B 'host':39B 'hpe':31B 'infrastructur':32B 'interfac':56B,83C 'lead':89C 'let':7A 'lucent':25B 'network':34B 'network-appli':33B 'oper':74B,112C 'overflow':6A,52B,77C 'privileg':69B,107C 'rce':36B 'reach':61B 'remot':92C 'root':13A 'run':10A,64B 'self':38B 'self-host':37B 'success':95C 'system':75B,113C 'unauthent':8A,40B,58B,91C 'under':73B,111C 'user':70B,108C 'vulner':78C 'wireless':42B,47B 'wireless-control':41B","nicknames":[],"mitigations":[],"who_affected":null,"tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-22T19:17:58+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cvss_by":"security-alert@hpe.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-79859","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-79859","severity":null,"published_at":"2026-10-22T19:17:58+00:00","modified_at":"2026-10-23T20:17:23+00:00","first_seen_at":"2026-10-23T21:57:32+00:00","fetched_at":"2026-10-23T22:29:02+00:00","note":null},{"source":"analyst","external_id":"CVE-2026-79859:202","url":null,"severity":null,"published_at":"2026-10-23T22:19:05+00:00","modified_at":"2026-10-23T22:19:05+00:00","first_seen_at":"2026-10-23T22:19:05+00:00","fetched_at":"2026-10-23T22:19:05+00:00","note":"Triage was wrong: this is HPE Aruba Networking ArubaOS (AOS-8), not Alcatel-Lucent Enterprise. Source: HPE bulletin HPESBNW05162 (page text not scrapeable; details from NVD/CVE.org and cyberpress). HPE says no known public PoC or exploitation at release. Exact vulnerable interface not stated (listed only as 'AOS-8'); the bulletin has 72 CVEs. CVE.org starts the affected range at 8.12.0.0, NVD at 8.13.0.0."},{"source":"epss","external_id":"CVE-2026-79859","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-79859","severity":null,"published_at":null,"modified_at":null,"first_seen_at":"2026-10-24T07:15:51+00:00","fetched_at":"2026-10-25T12:38:51+00:00","note":null}],"documents":[{"id":1255,"url":"https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05162en_us&docLocale=en_US","title":"HPESBNW05162 rev.1 - Multiple Vulnerabilities in HPE Networking Wireless OS (AOS-10 & AOS-8)","kind":"advisory","source":"analyst","text":"Vendor bulletin 2026-10-22. Page is JS-only; body not readable by tools.","published_at":null,"relation":"advisory","confidence":null,"note":null},{"id":1391,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-79859","title":"NVD CVE-2026-79859","kind":"other","source":"analyst","text":null,"published_at":null,"relation":"describes","confidence":null,"note":null},{"id":1279,"url":"https://cyberpress.org/critical-hpe-aruba-aos-8-vulnerability/","title":"Critical HPE Aruba AOS-8 Vulnerability (cyberpress)","kind":"blog","source":"analyst","text":"Secondary. Fixed: AOS-8 8.13.3.1 or 8.10.0.24. Mitigation: restrict CLI/web mgmt to dedicated L2 VLAN, L3+ firewall. No known public discussion or exploit as of bulletin.","published_at":null,"relation":"fix","confidence":null,"note":null},{"id":1256,"url":"https://www.bleepingcomputer.com/news/security/hpe-patches-eight-max-severity-rce-and-auth-bypass-aos-flaws/","title":"HPE patches eight max severity RCE and auth bypass AOS flaws","kind":"blog","source":"analyst","text":"Secondary. Quotes HPE advisory: restrict CLI and web management interfaces to dedicated L2 VLAN and/or L3+ firewall; HPE not aware of public discussion or exploit code as of release. Does not list this CVE or fixed versions.","published_at":null,"relation":"mentions","confidence":null,"note":null}],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}