Arista Networks stock at USD 205.95 on September 28, 2026, down 0.29 percent
Published on 09/28/2026 at 20:16 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWS
Arista Networks stock last traded at USD 205.95 on the NYSE at 18:15:51 UTC on September 28, 2026, down 0.29 percent from the previous close of USD 206.55. The session was open at the time of the quote.
Trading session
The quoted price and daily change are separate from Arista Networks' company announcements. No causal link between the trading data and the announcements is established here.
Security advisory and product update
In a September 9, 2026 security advisory revised September 22, Arista Networks described several vulnerabilities affecting certain EOS configurations using 802.1X authentication with ACL-based authorization. The company said the issues were discovered internally and that it was not aware of malicious exploitation in customer networks. Arista recommended upgrading to remediated software versions; the advisory said no hotfix was available. Arista Networks
Separately, Arista Networks announced on September 17 an upcoming end of sale for the DCA-NDR-S100MB appliance. The notice identified the DCA-NDR-S100MBX as a replacement product and said customers with active support contracts would continue to receive support according to the listed end-of-life milestones. Arista Networks
