{"id":"CVE-2019-16863","aliases":["EUVD-2019-7373","GHSA-wg83-v62r-wh2x"],"status":"published","title":"STMicroelectronics ST33TPHF2ESPI TPM devices before 2019-09-12 allow attackers to extract the...","description":"STMicroelectronics ST33TPHF2ESPI TPM devices before 2019-09-12 allow attackers to extract the ECDSA private key via a side-channel timing attack because ECDSA scalar multiplication is mishandled, aka TPM-FAIL.","severity":{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.03413,"percentile":0.88989,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-203","CWE-327"],"published":"2019-11-14T02:07:52Z","modified":"2026-06-17T02:22:50Z","products":[{"vendor":"st","product":"st33tphf20i2c_firmware"},{"vendor":"st","product":"st33tphf20spi_firmware"},{"vendor":"st","product":"st33tphf2ei2c_firmware"},{"vendor":"st","product":"st33tphf2espi_firmware"}],"references":[{"url":"http://tpm.fail","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://support.f5.com/csp/article/K32412503?utm_source=f5support\u0026amp%3Butm_medium=RSS","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US\u0026docId=emr_na-hpesbhf03972en_us","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory"]},{"url":"https://support.lenovo.com/us/en/product_security/LEN-29406","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory"]},{"url":"https://www.st.com/content/st_com/en/campaigns/tpm-update.html","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/ADV190024","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-16863"},{"url":"https://support.f5.com/csp/article/K32412503?utm_source=f5support\u0026amp;utm_medium=RSS"},{"url":"https://github.com/advisories/GHSA-wg83-v62r-wh2x"}],"sources":{"cve":[{"id":"CVE-2019-16863","description":"STMicroelectronics ST33TPHF2ESPI TPM devices before 2019-09-12 allow attackers to extract the ECDSA private key via a side-channel timing attack because ECDSA scalar multiplication is mishandled, aka TPM-FAIL.","status":"published","published":"2019-11-14T02:07:52Z","modified":"2024-08-05T01:24:48.37Z","updated_at":"2026-11-02T14:32:23.485011Z"}],"euvd":[{"id":"EUVD-2019-7373","description":"STMicroelectronics ST33TPHF2ESPI TPM devices before 2019-09-12 allow attackers to extract the ECDSA private key via a side-channel timing attack because ECDSA scalar multiplication is mishandled, aka TPM-FAIL.","status":"published","published":"2019-11-14T02:07:52Z","modified":"2024-08-05T01:24:48Z","updated_at":"2026-11-03T02:40:31.903592Z"}],"ghsa":[{"id":"GHSA-wg83-v62r-wh2x","title":"STMicroelectronics ST33TPHF2ESPI TPM devices before 2019-09-12 allow attackers to extract the...","description":"STMicroelectronics ST33TPHF2ESPI TPM devices before 2019-09-12 allow attackers to extract the ECDSA private key via a side-channel timing attack because ECDSA scalar multiplication is mishandled, aka TPM-FAIL.","status":"published","published":"2022-05-24T17:01:18Z","modified":"2023-01-28T05:07:43Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-327"],"updated_at":"2026-11-02T14:44:34.06652Z"}],"nvd":[{"id":"CVE-2019-16863","description":"STMicroelectronics ST33TPHF2ESPI TPM devices before 2019-09-12 allow attackers to extract the ECDSA private key via a side-channel timing attack because ECDSA scalar multiplication is mishandled, aka TPM-FAIL.","status":"published","published":"2019-11-14T03:15:11.51Z","modified":"2026-06-17T02:22:50.58Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-203","CWE-327"],"updated_at":"2026-11-02T14:05:35.052973Z"}]}}