CVE-2026-23811
lowpriority · track · 12EPSS 0.002 · 4 %ileDEEUUSEPSS · scored 2026-10-27
A vulnerability in the client isolation mechanism may allow an attacker to bypass Layer 2 (L2) communication restrictions between clients and redirect traffic at Layer 3 (L3). In addition to bypassing policy enforcement, successful exploitation - when combined with a port-stealing attack - may enable a bi-directional Machine-in-the-Middle (MitM) attack.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 2.9–4.3
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (24)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-0583Aruba ArubaOS: Mehrere SchwachstellenDeutsch2026-03-03csaf · cert_bundDE
Ein Angreifer aus einem angrenzenden Netzwerk kann mehrere Schwachstellen in Aruba ArubaOS ausnutzen, um Sicherheitsmaßnahmen zu umgehen, Daten zu manipulieren, Man-in-the-Middle-Angriffe durchzuführen, einen Denial-of-Service-Zustand auszulösen, vertrauliche Informationen offenzulegen oder Sitzungen zu kapern.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (4)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/cve-2026-23811cnnvd
- https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05026en_us&docLocale=en_UScnnvd
- https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05026en_us&docLocale=en_USenisa_euvd
- https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05026en_us&docLocale=en_USVendor Advisorynvd
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