CVE-2020-25082
CVE-2020-25082 is a low-severity vulnerability in Nuvoton Npct75x Firmware with a CVSS 3.x base score of 3.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-203.
Key facts
- Severity: Low (CVSS 3.x base score 3.8)
- CVSS v2: 1.9
- EPSS exploit prediction: 0% (11th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-203
- Affected product: Nuvoton Npct75x Firmware
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2020-25082?
- 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.
- How severe is CVE-2020-25082?
- CVE-2020-25082 has a CVSS 3.x base score of 3.8, rated low severity. It is exploitable over physical access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
- Is CVE-2020-25082 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-25082?
- CVE-2020-25082 affects Nuvoton Npct75x Firmware. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-25082?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2020-25082 published?
- CVE-2020-25082 was published on 2021-08-10 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:o:nuvoton:npct75x_firmware:*:*:*:*:*:*:*:*
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