{"id":"CVE-2026-43606","aliases":["EUVD-2026-56555","GHSA-cx8r-g3c8-jcfg"],"status":"published","title":"Observable Timing Discrepancy in the AMD Vitis Libraries ECDSA secp256k1 component could allow...","description":"Observable Timing Discrepancy in the AMD Vitis Libraries ECDSA secp256k1 component could allow attackers with local access to potentially perform timing analysis or electromagnetic emanation attacks, resulting in high confidentiality and integrity impact due to the exposure of private cryptographic keys.","severity":{"version":"4.0","score":7.7,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00159,"percentile":0.05096,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-208"],"published":"2026-08-11T16:49:12Z","modified":"2026-08-12T20:50:58Z","products":[{"vendor":"amd","product":"vitis™  libraries - security module"},{"vendor":"amd","product":"vitis™ unified installer for fpgas \u0026 adaptive socs in windows"}],"references":[{"url":"https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-8015.html"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43606"},{"url":"https://github.com/advisories/GHSA-cx8r-g3c8-jcfg"}],"sources":{"cve":[{"id":"CVE-2026-43606","description":"Observable Timing Discrepancy in the AMD Vitis Libraries ECDSA secp256k1 component could allow attackers with local access to potentially perform timing analysis or electromagnetic emanation attacks, resulting in high confidentiality and integrity impact due to the exposure of private cryptographic keys.","status":"published","published":"2026-08-11T16:49:12.854Z","modified":"2026-08-12T13:05:46.102Z","cvss":[{"version":"4.0","score":7.7,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","level":"high","assessor":"cna"}],"cwes":["CWE-208"],"updated_at":"2026-11-02T13:37:36.275898Z"}],"euvd":[{"id":"EUVD-2026-56555","description":"Observable Timing Discrepancy in the AMD Vitis Libraries ECDSA secp256k1 component could allow attackers with local access to potentially perform timing analysis or electromagnetic emanation attacks, resulting in high confidentiality and integrity impact due to the exposure of private cryptographic keys.","status":"published","published":"2026-08-11T16:49:12Z","modified":"2026-08-12T13:05:46Z","cvss":[{"version":"4.0","score":7.7,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T18:01:58.638592Z"}],"ghsa":[{"id":"GHSA-cx8r-g3c8-jcfg","title":"Observable Timing Discrepancy in the AMD Vitis Libraries ECDSA secp256k1 component could allow...","description":"Observable Timing Discrepancy in the AMD Vitis Libraries ECDSA secp256k1 component could allow attackers with local access to potentially perform timing analysis or electromagnetic emanation attacks, resulting in high confidentiality and integrity impact due to the exposure of private cryptographic keys.","status":"published","published":"2026-08-11T18:30:55Z","modified":"2026-08-11T18:31:03Z","cvss":[{"version":"4.0","score":8.5,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high"}],"cwes":["CWE-208"],"updated_at":"2026-11-02T15:10:18.151039Z"}],"nvd":[{"id":"CVE-2026-43606","description":"Observable Timing Discrepancy in the AMD Vitis Libraries ECDSA secp256k1 component could allow attackers with local access to potentially perform timing analysis or electromagnetic emanation attacks, resulting in high confidentiality and integrity impact due to the exposure of private cryptographic keys.","status":"published","published":"2026-08-11T17:17:58.837Z","modified":"2026-08-12T20:50:58.37Z","cvss":[{"version":"4.0","score":8.5,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"}],"cwes":["CWE-208"],"updated_at":"2026-11-02T14:12:36.499002Z"}]}}