Vulnerability Details : 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.
Products affected by CVE-2020-25082
- cpe:2.3:o:nuvoton:npct75x_firmware:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-25082
0.06%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 15 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-25082
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
1.9
|
LOW | AV:L/AC:M/Au:N/C:P/I:N/A:N |
3.4
|
2.9
|
NIST | |
|
3.8
|
LOW | CVSS:3.1/AV:P/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N |
0.2
|
3.6
|
MITRE | |
|
3.8
|
LOW | CVSS:3.1/AV:P/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N |
0.2
|
3.6
|
NIST |
CWE ids for CVE-2020-25082
-
The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor, which exposes security-relevant information about the state of the product, such as whether a particular operation was successful or not.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-25082
-
https://www.nuvoton.com/support/product-related-information/security-advisories/sa-002/
SA-002: Potential Extraction of an Elliptic Curve Cryptography (ECC) private key via a side-channel attack against ECDSA - NuvotonVendor Advisory
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