CVE-2020-25082

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Published Aug 10, 2021 CVSS 3.1 · 3.8 Low EPSS < 1% KEV · Not listed

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.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

AND

cpe:2.3:o:nuvoton:npct75x_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:nuvoton:npct75x:-:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2020-17774	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.

Metrics

No CVSS v4.0

Attack Vector Physical

Attack Complexity High

Privileges Required High

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

Access Vector Local

Access Complexity Medium

Authentication None

Confidentiality Impact Partial

Integrity Impact None

Availability Impact None

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.207% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://www.nuvoton.com/support/product-related-information/security-advisories/sa-002/

History

No history.

Subscriptions

Nuvoton Npct75x Npct75x Firmware

Weaknesses

CWE-203

Sources

CVE record Updated: Aug 4, 2024, 3:26 PM

Status: PUBLISHED
Assigner: mitre
Published: Aug 10, 2021, 3:28 PM
Updated: Aug 4, 2024, 3:26 PM
Reserved: Sep 2, 2020, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 3:06 AM

Status: Modified
Published: Aug 10, 2021, 5:15 PM
Modified: Jun 17, 2026, 3:06 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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