{"id":"CVE-2026-19640","title":"On affected platforms running Arista EOS, an authenticated user with access to the gNMI (gRPC Network Management Interface) may receive incorrect authorization results, potentially allowing access beyond their currently assigned permissi…","summary":"On affected platforms running Arista EOS, an authenticated user with access to the gNMI (gRPC Network Management Interface) may receive incorrect authorization results, potentially allowing access beyond their currently assigned permissi…","severity":"medium","cvss":4.2,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N","cwe":["CWE-863"],"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 >= 4.24.0F < 4.33.0F"],"published":"2026-09-16","updated":"2026-09-16","sourceUpdated":"2026-09-16T19:08:50.420","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-19640","references":[{"url":"https://www.arista.com/en/support/advisories-notices/security-advisory/24726-security-advisory-0170","label":"psirt@arista.com"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-16T13:55:08.082343Z"},"ingestedAt":"2026-09-16T09:53:11.607Z","epss":0.00192,"epssPercentile":0.09135,"slug":"CVE-2026-19640","body":"## Overview\n\nOn affected platforms running Arista EOS, an authenticated user with access to the gNMI (gRPC Network Management Interface) may receive incorrect authorization results, potentially allowing access beyond their currently assigned permissions.\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":23,"depthScoreParts":{"impact":23.1,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}