CVE-2026-79856Unauthenticated Buffer Overflow Vulnerability leads to Authentication Bypass in AOS-8
Updated under an hour ago ()
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It affects Hewlett Packard Enterprise (HPE) ArubaOS (AOS). Add what you run to find out whether that includes you.
EPSS puts the chance of exploitation in the next 30 days at 0.61%, higher than 49% of scored CVEs.
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A buffer overflow vulnerability exists in the PAPI protocol of AOS-8 that could allow an unauthenticated remote attacker to circumvent existing authentication controls. Successful exploitation could allow an attacker to gain administrative access, modify system configurations, and access or manipulate sensitive data.
- CVSS
- 9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-119
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- 0.61% (percentile 49)
- Assigned by
- hpe
- NVD analysis
- Awaiting Analysis
- Record last updated
- Oct 23, 2026
- First seen by InfoSec Signals
- Oct 22, 2026
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.