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UK Cyber Defence
VulnerabilityAwaiting Analysis

CVE-2026-79881

An authentication bypass vulnerability in the underlying operating system of AOS-8 could allow an unauthenticated remote attacker to circumvent existing authentication controls.

HIGH 8.3EPSS 0.45%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.45%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

An authentication bypass vulnerability in the underlying operating system of AOS-8 could allow an unauthenticated remote attacker to circumvent existing authentication controls. Successful exploitation could allow an attacker to execute arbitrary code as a privileged user on the underlying operating system leading to complete system compromise.

CVSS 3.1
8.3 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
EPSS
0.45% probability · 39th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Source
security-alert@hpe.com
EPSS trend
0%3%5%23 October 2026: 0.20%26 October 2026: 0.45%23 October 202626 October 2026

EPSS moved from 0.2% on 23 October 2026 to 0.4% on 26 October 2026.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.