What’s Vulnerable › Vulnerabilities
CVE-2019-16863
- Severity: medium (CVSS 5.9 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 3.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2019-11-14 · updated 2026-06-17
- Weakness: CWE-203
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.
Affected products
- St33Tphf20I2C Firmware: 74.5, 74.9
- St33Tphf20Spi Firmware: 74.0, 74.4, 74.8, 74.16
- St33Tphf2Ei2C Firmware: 73.5, 73.9
- St33Tphf2Espi Firmware: 71.0, 71.4, 71.12, 73.0, 73.4, 73.8
References
- http://tpm.fail
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/ADV190024
- https://support.f5.com/csp/article/K32412503?utm_source=f5support&%3Butm_medium=RSS
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03972en_us
- https://support.lenovo.com/us/en/product_security/LEN-29406
- https://www.st.com/content/st_com/en/campaigns/tpm-update.html
- http://tpm.fail
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/ADV190024
- https://support.f5.com/csp/article/K32412503?utm_source=f5support&%3Butm_medium=RSS
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03972en_us
- https://support.lenovo.com/us/en/product_security/LEN-29406
- https://www.st.com/content/st_com/en/campaigns/tpm-update.html
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