CVE-2026-19641
mediumpriority · track · 0EPSS 0.005 · 41 %ileDEEPSS · scored 2026-10-27
On affected platforms running Arista EOS with password authentication configured, a specially crafted password can create orphan authentication sessions. Repeated exploitation of this issue can exhaust available authentication resources, resulting in legitimate users being unable to log in to the device. This issue was discovered internally by Arista, and the company is not aware of any malicious exploitation of this vulnerability in customer networks.
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 · 2.7–6.9
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (8)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-3410Arista EOS: Mehrere SchwachstellenDeutsch2026-09-15csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Arista EOS ausnutzen, um sensible Schlüssel, Passwörter oder TACACS+-Secrets offenzulegen, Sicherheits- und Zugriffskontrollen zu beeinträchtigen, Netzwerk- oder Authentifizierungsdienste zu stören, Benutzerkonten mit erhöhten Berechtigungen auszustatten und im schwerwiegendsten Fall beliebigen Code mit Root-Rechten auf dem betroffenen Switch auszuführen.
sources
Which sources assert this record, and when.
references (1) nvd
External citations — patches, advisories, analysis.
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