{"id":"CVE-2026-79855","kind":"vulnerability","aliases":["CVE-2026-79855"],"related":[],"title":"AOS-8: SSH daemon authentication bypass grants unauthenticated administrative access","description":"An authentication bypass vulnerability in the SSH daemon of AOS-8 allows an unauthenticated remote attacker to circumvent existing authentication controls. Successful exploitation allows an attacker to gain administrative privileges leading to complete compromise of the AOS-8 host.","summary":"Unauthenticated SSH daemon authentication bypass in HPE Aruba AOS-8 (CWE-288, CVSS 9.8, AV:N/PR:N). It gives administrative access and full host compromise. It is one of 72 CVEs in bulletin HPESBNW05162, which covers both AOS-8 and AOS-10. HPE credits its internal researchers and says it knew of no public discussion or exploit code at release.","severity":"critical","cvss":9.8,"epss":0.006,"exploited":false,"exploited_at":null,"products":[{"name":"HPE Aruba AOS-8","fixed":["8.13.3.1","8.10.0.24"],"affected":"<= 8.13.3.0, <= 8.10.0.23","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["aos-8","aruba","hpe","infrastructure","network-appliances","ssh","wireless"],"not_affected_if":["aos-10-only","management-interface-not-reachable"],"how_to_check":"Run 'show version' on each Mobility Conductor, Mobility Controller and Instant AP. You are affected if AOS-8 is 8.13.3.0 or earlier, or 8.10.0.23 or earlier. Then check whether SSH (TCP/22) on the management interface is reachable from untrusted networks, and review SSH logins in the auth logs for unexpected admin sessions.","fix":"Upgrade AOS-8 to 8.13.3.1 or 8.10.0.24, depending on your release branch. If you cannot upgrade yet, restrict the CLI and web management interfaces to a dedicated L2 segment or VLAN, apply L3+ firewall controls, and enable accounting. HPE says this does not replace patching. Rotate credentials if you suspect compromise.","status":"open","published_at":"2026-10-22T19:17:57+00:00","first_seen_at":"2026-10-23T21:57:32+00:00","triaged_at":"2026-10-23T22:32:00+00:00","updated_at":"2026-10-25T12:38:51+00:00","category":"infrastructure","confidence":0.7,"triage":{"at":"2026-10-23T22:32:00Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"internet","title":"AOS-8: SSH daemon authentication bypass grants unauthenticated administrative access","impact":"high","summary":"The SSH daemon on AOS-8 network appliances can be bypassed without credentials. A remote attacker who gets past it gains administrative privileges and full control of the host.","category":"infrastructure","who_cares":["aos-8","network-appliances","ssh"],"confidence":0.6,"needs_auth":"no","worst_case":"Unauthenticated attacker gains administrative control of the appliance host","analyst_note":"Find the vendor advisory and affected/fixed AOS-8 versions and the SSH-exposure check; the NVD entry gives none of these.","how_to_check":"unknown","needs_analyst":true,"not_affected_if":[],"user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"critical"},"cost_usd":0.000452,"input_tokens":2930,"output_tokens":319,"severity_before":"critical"},"analyst_status":"done","analyst_note":"Find the vendor advisory and affected/fixed AOS-8 versions and the SSH-exposure check; the NVD entry gives none of these.","search":"'-10':72B '-2026':12A,15A '-288':42B '-79855':13A,16A '-8':2A,20A,22B,40B,69B,101C,128C '72':60B '9.8':44B 'access':10A,51B 'administr':9A,50B,119C 'allow':102C,114C 'ao':1A,21B,39B,68B,71B,100C,127C 'aos':19A 'applianc':28B 'aruba':18A,23B,38B 'attack':106C,116C 'authent':5A,34B,92C,110C 'av':45B 'bulletin':63B 'bypass':6A,35B,93C 'circumv':108C 'code':88B 'complet':123C 'compromis':55B,124C 'control':111C 'cover':66B 'credit':74B 'cve':11A,14A 'cves':61B 'cvss':43B 'cwe':41B 'daemon':4A,33B,98C 'discuss':85B 'exist':109C 'exploit':87B,113C 'full':53B 'gain':118C 'give':49B 'grant':7A 'host':54B,129C 'hpe':17A,24B,37B,73B 'hpesbnw05162':64B 'infrastructur':25B 'intern':76B 'knew':81B 'lead':121C 'n':47B 'n/pr':46B 'network':27B 'network-appli':26B 'one':58B 'privileg':120C 'public':84B 'releas':90B 'remot':105C 'research':77B 'say':79B 'ssh':3A,29B,32B,97C 'success':112C 'unauthent':8A,31B,104C 'vulner':94C 'wireless':30B","nicknames":[],"mitigations":[],"who_affected":null,"tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-22T19:17:57+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-2026-79855","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-79855","severity":null,"published_at":"2026-10-22T19:17:57+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-2026-79855:295","url":null,"severity":null,"published_at":"2026-10-23T22:46:22+00:00","modified_at":"2026-10-23T22:46:22+00:00","first_seen_at":"2026-10-23T22:46:22+00:00","fetched_at":"2026-10-23T22:46:22+00:00","note":"HPE bulletin HPESBNW05162 (22 Oct 2026) is the primary advisory but its page text did not render for me; versions come from GBHackers' summary of it, so check them against the bulletin. No exploitation or public PoC per HPE at release. I did not search X or Bluesky."},{"source":"epss","external_id":"CVE-2026-79855","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-79855","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":1599,"url":"https://gbhackers.com/critical-hpe-aruba-aos-8-flaw/","title":"GBHackers: Critical HPE Aruba AOS-8 flaw","kind":"blog","source":"analyst","text":null,"published_at":null,"relation":"describes","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":"mitigation","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"}