CVE-2026-73469
Security Advisory 0176
CVSS Score
5.8
EPSS Score
0.0%
EPSS Percentile
0th
When specific platforms are using Arista EOS with a loose Unicast Reverse Path Forwarding (uRPF) configuration, certain traffic may not be subjected to the intended verification drop. Consequently, traffic that should be dropped based on these routes could still be processed and forwarded by the device. This issue was discovered internally by Arista and the company is not aware of any malicious uses of this issue in customer networks.
| CWE | CWE-863 |
| Vendor | arista networks |
| Product | eos |
| Published | Sep 16, 2026 |
| Last Updated | Sep 16, 2026 |
Stay Ahead of the Next One
Get instant alerts for arista networks eos
Be the first to know when new medium vulnerabilities affecting arista networks eos are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Arista Networks / EOS
4.35.0F ≤ 4.35.4M