CVE-2019-16863 json
STMicroelectronics ST33TPHF2ESPI TPM devices before 2019-09-12 allow attackers to extract the ECDSA private key via a side-channel timing a…
published 2019-11-14 6 y ago modified 2026-06-17 4 mo ago also EUVD-2019-7373
- cvss
- 5.9
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 3.4%
- EPSS 3.4% chance of exploitation in 30 days, percentile 88%
- public exploits
- 0
- none known
Summary
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.
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2019-16863 updated cvss 6.8
hw: ECDSA signature timing vulnerabilities in TPM module
-
Red Hat Enterprise Linux 6 linux-firmware Red Hat Enterprise Linux 7 linux-firmware, iwl100-firmware, iwl105-firmware, iwl135-firmware, iwl1000-firmware, iwl2000-firmware, +12 more Red Hat Enterprise Linux 8 linux-firmware, iwl100-firmware, iwl105-firmware, iwl135-firmware, iwl1000-firmware, iwl2000-firmware, +15 morenot affected: vulnerable code not present
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
Exploit prediction
3.41% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:P/I:N/A:N |
Classification
References
-
st.com
/content/st_com/en/campaigns/tpm-update.html
vendor-advisory
-
tpm.fail
third-party-advisory
- support.f5.com /csp/article/K32412503?utm_source=f5support&%3Butm_medium=RSS
-
support.hpe.com
/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03972en_us
third-party-advisory
-
support.lenovo.com
/us/en/product_security/LEN-29406
third-party-advisory
-
portal.msrc.microsoft.com
/en-US/security-guidance/advisory/ADV190024
third-party-advisory
Sources
- CVE List CVE-2019-16863
- NVD CVE-2019-16863
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