How severe is CVE-2026-23812?

CVE-2026-23812 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2026-23812 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-23812?

CVE-2026-23812 primarily affects Arubanetworks Arubaos. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-23812?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-23812 have an EU (EUVD) identifier?

Yes. CVE-2026-23812 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-9418.

When was CVE-2026-23812 published?

CVE-2026-23812 was published on 2026-03-04 and last updated on 2026-06-17.

CVE-2026-23812

CVE-2026-23812 is a medium-severity vulnerability in Arubanetworks Arubaos with a CVSS 3.x base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-300.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
EPSS exploit prediction: 0% (4th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-9418
Weakness: CWE-300
Affected product: Arubanetworks Arubaos
Published: 2026-03-04
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2026-23812?: 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.
How severe is CVE-2026-23812?: CVE-2026-23812 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2026-23812 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-23812?: CVE-2026-23812 primarily affects Arubanetworks Arubaos. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-23812?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-23812 have an EU (EUVD) identifier?: Yes. CVE-2026-23812 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-9418.
When was CVE-2026-23812 published?: CVE-2026-23812 was published on 2026-03-04 and last updated on 2026-06-17.

References

https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05026en_us&docLocale=en_US

Affected products (2)

cpe:2.3:o:arubanetworks:arubaos:*:*:*:*:*:*:*:*
cpe:2.3:o:arubanetworks:arubaos:10.8.0.0:*:*:*:*:*:*:*

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