CVE-2020-25082 json
An attacker with physical access to Nuvoton Trusted Platform Module (NPCT75x 7.2.x before 7.2.2.0) could extract an Elliptic Curve Cryptogr…
published 2021-08-10 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-17774
- cvss
- 3.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 10%
- public exploits
- 0
- none known
Summary
An attacker with physical access to Nuvoton Trusted Platform Module (NPCT75x 7.2.x before 7.2.2.0) could extract an Elliptic Curve Cryptography (ECC) private key via a side-channel attack against ECDSA, because of an Observable Timing Discrepancy.
Patch / fix
- nuvoton npct75x_firmware 7.2.2.0
Exploit prediction
0.21% chance of exploitation in the next 30 days, higher than 10% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 3.8 | CVSS:3.1/AC:H/AV:P/A:N/C:H/I:N/PR:H/S:U/UI:N |
| CNA | 3.1 | 3.8 | CVSS:3.1/AV:P/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N |
| NVD | 3.1 | 3.8 | CVSS:3.1/AV:P/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 1.9 | AV:L/AC:M/Au:N/C:P/I:N/A:N |
Classification
- Weakness
-
- CWE-203 Observable Discrepancy
References
Sources
- CVE List CVE-2020-25082
- NVD CVE-2020-25082
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