CVE-2020-12118
Incorrect Default Permissions in Binance tss-lib
The keygen protocol implementation in Binance tss-lib before 1.2.0 allows attackers to generate crafted h1 and h2 parameters in order to compromise a signing round or obtain sensitive information from other parties.
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
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
The keygen protocol implementation in Binance tss-lib before 1.2.0 allows attackers to generate crafted h1 and h2 parameters in order to compromise a signing round or obtain sensitive information from other parties.
- Record
CVE-2020-12118- CVSS 3.1
- 8.2 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N - CVSS 2.0
- 6.4 Medium
AV:N/AC:L/Au:N/C:P/I:P/A:N - Weakness
- CWE-276
- Updated
- 2026-11-02
CVE List No score
The keygen protocol implementation in Binance tss-lib before 1.2.0 allows attackers to generate crafted h1 and h2 parameters in order to compromise a signing round or obtain sensitive information from other parties.
- Record
CVE-2020-12118- Updated
- 2026-11-02
EUVDEUVD-2021-1252 No score
The keygen protocol implementation in Binance tss-lib before 1.2.0 allows attackers to generate crafted h1 and h2 parameters in order to compromise a signing round or obtain sensitive information from other parties.
- Record
EUVD-2021-1252- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-399h-cmvp-qgx5
Incorrect Default Permissions in Binance tss-lib
The keygen protocol implementation in Binance tss-lib before 1.2.0 allows attackers to generate crafted h1 and h2 parameters in order to compromise a signing round or obtain sensitive information from other parties.
Specific Go Packages Affected
github.com/binance-chain/tss-lib/ecdsa/keygen
- Record
GHSA-399h-cmvp-qgx5- CVSS 3.1
- 7.2 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:R - Weakness
- CWE-276
- Updated
- 2026-11-02
OSV
The keygen protocol implementation in Binance tss-lib before 1.2.0 allows attackers to generate crafted h1 and h2 parameters in order to compromise a signing round or obtain sensitive information from other parties.
- Record
CVE-2020-12118- CVSS 3.1
- 8.2 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N - Updated
- 2026-11-02
OSVGHSA-399h-cmvp-qgx5
Incorrect Default Permissions in Binance tss-lib
The keygen protocol implementation in Binance tss-lib before 1.2.0 allows attackers to generate crafted h1 and h2 parameters in order to compromise a signing round or obtain sensitive information from other parties.
Specific Go Packages Affected
github.com/binance-chain/tss-lib/ecdsa/keygen
- Record
GHSA-399h-cmvp-qgx5- CVSS 3.1
- 8.6 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:R - Weakness
- CWE-276
- Updated
- 2026-11-02
OSVGO-2022-0769 No score
Incorrect Default Permissions in Binance tss-lib in github.com/binance-chain/tss-lib
Incorrect Default Permissions in Binance tss-lib in github.com/binance-chain/tss-lib
- Record
GO-2022-0769- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
github.com/binance-chain/tss-libGo |
before 1.2.0 | 1.2.0 |
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-2020-12118 is a high vulnerability (CVSS 8.2) in Binance Tss-lib, published April 23, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.28%, the 70th percentile. Fixed in github.com/binance-chain/tss-lib 1.2.0.