CVE-2026-6923
Nuvoton - CWE-1300: Improper Protection of Physical Side Channels
A side-channel attack, which requires a physical presence to the TPM, can lead to extraction of an Elliptic Curve Diffie-Hellman (ECDH) key.
Attack profile
How easy it is to exploit
- Attack vector
- Physical
- Complexity
- High
- Privileges needed
- High
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Nuvoton - CWE-1300: Improper Protection of Physical Side Channels
A side-channel attack, which requires a physical presence to the TPM, can lead to extraction of an Elliptic Curve Diffie-Hellman (ECDH) key.
- Record
CVE-2026-6923- CVSS 3.1
- 3.8 Low
CVSS:3.1/AV:P/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-1300
- Updated
- 2026-11-02
EUVDEUVD-2026-30328
A side-channel attack, which requires a physical presence to the TPM, can lead to extraction of an Elliptic Curve Diffie-Hellman (ECDH) key.
- Record
EUVD-2026-30328- CVSS 3.1
- 3.8 Low
CVSS:3.1/AV:P/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-j7g5-cj58-4v5f
A side-channel attack, which requires a physical presence to the TPM, can lead to extraction of...
A side-channel attack, which requires a physical presence to the TPM, can lead to extraction of an Elliptic Curve Diffie-Hellman (ECDH) key.
- Record
GHSA-j7g5-cj58-4v5f- CVSS 3.1
- 3.8 Low
CVSS:3.1/AV:P/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-1300
- Updated
- 2026-11-02
NVD
A side-channel attack, which requires a physical presence to the TPM, can lead to extraction of an Elliptic Curve Diffie-Hellman (ECDH) key.
- Record
CVE-2026-6923- CVSS 3.1
- 3.8 Low
CVSS:3.1/AV:P/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-1300
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-6923 is a low vulnerability (CVSS 3.8) in Nuvoton Npct7xx, published May 14, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.12%, the 1st percentile. No source names a fixed version.