Critical severity · published Oct 22, 2026
CVE-2026-79866
Unauthenticated Adjacent Path Traversal Vulnerability leads to Filesystem Compromise in AOS-8
New
9.6
CVSS
0.2%
EPSS
No
On KEV
Description
An unauthenticated path traversal vulnerability exists in the PAPI protocol in AOS-8. Successful exploitation of this vulnerability could allow an unauthenticated adjacent attacker to read, modify, and delete files on the underlying operating system.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 15% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AA
ArubaOS (AOS) · Hewlett Packard Enterprise (HPE)
8.13.0.0 through 8.13.3.0; 8.10.0.0 through 8.10.0.23 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-79866
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-79866
support.hpe.com
https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05162en_us&docLocale=en_US
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