Vulnerability in Nuvoton Npct7xx

CVE-2026-6923

A side-channel attack, which requires a physical presence to the TPM, can lead to extraction of an Elliptic Curve Diffie-Hellman (ECDH) key.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 3.8 (Low). Vector: CVSS:3.1/AV:P/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.002 (4.8th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 5th percentile — 4.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-6923: held from 0.001 to 0.002.

EPSS over last 30 days · oldest: 0.001 · newest: 0.002 · change: +0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-6923?
CVE-2026-6923 is a low-severity vulnerability in Nuvoton Npct7xx, classified under CWE-1300. CVSS score: 3.8/10. Published 2026-05-14.
How severe is CVE-2026-6923?
Low severity. CVSS v3 base score is 3.8 out of 10.