CVE-2020-27209
The ECDSA operation of the micro-ecc library 1.0 is vulnerable to simple power analysis attacks...
The ECDSA operation of the micro-ecc library 1.0 is vulnerable to simple power analysis attacks which allows an adversary to extract the private ECC key.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
The ECDSA operation of the micro-ecc library 1.0 is vulnerable to simple power analysis attacks which allows an adversary to extract the private ECC key.
- Record
CVE-2020-27209- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:N - Updated
- 2026-11-02
CVE List No score
The ECDSA operation of the micro-ecc library 1.0 is vulnerable to simple power analysis attacks which allows an adversary to extract the private ECC key.
- Record
CVE-2020-27209- Updated
- 2026-11-02
EUVDEUVD-2020-19728 No score
The ECDSA operation of the micro-ecc library 1.0 is vulnerable to simple power analysis attacks which allows an adversary to extract the private ECC key.
- Record
EUVD-2020-19728- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-q6hh-7xhq-494h No score
The ECDSA operation of the micro-ecc library 1.0 is vulnerable to simple power analysis attacks...
The ECDSA operation of the micro-ecc library 1.0 is vulnerable to simple power analysis attacks which allows an adversary to extract the private ECC key.
- Record
GHSA-q6hh-7xhq-494h- Updated
- 2026-11-02
OSV
The ECDSA operation of the micro-ecc library 1.0 is vulnerable to simple power analysis attacks which allows an adversary to extract the private ECC key.
- Record
CVE-2020-27209- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-27209 is a high vulnerability (CVSS 7.5) in Micro-ecc Project Micro-ecc, published May 20, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.54%, the 75th percentile. No source names a fixed version.
References
aisec.fraunhofer.de/en/FirmwareProtection.html
github.com/kmackay/micro-ecc/releases
eprint.iacr.org/2021/640
nvd.nist.gov/vuln/detail/CVE-2020-27209