UNKNOWN Arista
CVE-2026-73456
Security Advisory 0158
Date: September 9, 2026
Revision
Date
Changes
1.0
September 9, 2026
Initial release
Description
Both CVE-2026-73456 and CVE-2026-73457 affect Arista EOS-based platforms with gRPC Network Packet Sampling Interface (gNPSI) configured. which is disabled by default.
These issues were discovered internally by Arista and the company is not aware of any malicious uses of this issue in customer networks.
CVE-2026-73456
Under certain circumstances, an unauthenticated gNPSI cl ...
Affected Products
- CVE-2026-73456
- CVE-2026-73457
References
- https://www.arista.com/en/support/advisories-notices/security-advisory/24714-security-advi
- https://nvd.nist.gov/vuln/detail/CVE-2026-73456
- https://nvd.nist.gov/vuln/detail/CVE-2026-73457
This unknown severity vulnerability was published on 2026-09-09 via Arista. Affected: CVE-2026-73456, CVE-2026-73457.
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