{"id":"CVE-2026-73445","title":"On affected platforms running Arista EOS, an issue with the gRPC Network Security Interface (gNSI) Authz Rotate RPC may cause an incorrect Authz policy which was uploaded in the ongoing RPC stream to become active","summary":"On affected platforms running Arista EOS, an issue with the gRPC Network Security Interface (gNSI) Authz Rotate RPC may cause an incorrect Authz policy which was uploaded in the ongoing RPC stream to become active. This does not affect B…","severity":"medium","cvss":4.9,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N","cwe":["CWE-20"],"vendor":"Arista Networks","product":"EOS","affected":["EOS >= 4.36.0F <= 4.36.0.1F","EOS >= 4.35.0F <= 4.35.5M","EOS >= 4.34.0F <= 4.34.7M","EOS >= 4.33.0F <= 4.33.8M","EOS >= 4.32.0F < 4.33.0F","EOS >= 4.31.0F < 4.32.0F"],"published":"2026-09-16","updated":"2026-09-16","sourceUpdated":"2026-09-16T19:09:28.447","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-73445","references":[{"url":"https://www.arista.com/en/support/advisories-notices/security-advisory/24723-security-advisory-0167","label":"psirt@arista.com"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-16T17:35:46.330735Z"},"ingestedAt":"2026-09-16T09:53:11.596Z","epss":0.00326,"epssPercentile":0.25942,"slug":"CVE-2026-73445","body":"## Overview\n\nOn affected platforms running Arista EOS, an issue with the gRPC Network Security Interface (gNSI) Authz Rotate RPC may cause an incorrect Authz policy which was uploaded in the ongoing RPC stream to become active. This does not affect Bootz.\n\nThis issue was discovered internally by Arista and the company is not aware of any malicious uses of this issue in customer networks.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":27,"depthScoreParts":{"impact":27,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}