Security Boundary Bypass via Routing Node Impersonation

published 2026-03-04 8 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-9418

cvss: 4.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 5%
public exploits: 0; none known

A vulnerability has been identified where an attacker connecting to an access point as a standard wired or wireless client can impersonate a gateway by leveraging an address-based spoofing technique. Successful exploitation enables the redirection of data streams, allowing for the interception or modification of traffic intended for the legitimate network gateway via a Machine-in-the-Middle (MitM) position.

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 8 mo ago (2026-03-04)

Exploit prediction

0.16% chance of exploitation in the next 30 days, higher than 5% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	4.3	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
NVD	3.1	4.2	CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

Affected products

Hewlett Packard Enterprise (HPE) HPE Aruba Networking Wireless Operating Systems (AOS-8 & AOS-10)

Classification

Weakness

CWE-300 Channel Accessible by Non-Endpoint

References

support.hpe.com /hpesc/public/docDisplay?docId=hpesbnw05026en_us&docLocale=en_US
vendor-advisory

Sources

CVE List CVE-2026-23812
NVD CVE-2026-23812

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Summary