CVE-2020-25082

LOW EPSS 10.8%
Published Aug 10, 20214y ago · Modified Jun 17, 20262w ago
3.8 CVSS 3.1
Low
Find Similar
Published Aug 10, 2021 4y ago
Last Modified Jun 17, 2026 2w ago

Description

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.

CVSS Details

Base Score
3.8
Exploitability
0.2
Impact
3.6
Vector string
CVSS:3.1/AV:P/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N
Attack Vector Physical
Attack Complexity High
Privileges Required High
User Interaction None
Scope Unchanged
Confidentiality High
Integrity None
Availability None

Threat Intelligence

EPSS Exploit Probability
10.8% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-203

Affected Products 2

VendorProductVersionRange
nuvotonnpct75x_firmware*≥7.2.0  –  <7.2.2.0
nuvotonnpct75x*any

References 1

  • nuvoton.com https://www.nuvoton.com/support/product-related-information/security-advisories/sa-002/
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.