CVE-2020-12118 json
Incorrect Default Permissions in Binance tss-lib
published 2020-04-23 6 y ago modified 2026-06-17 4 mo ago also GHSA-399h-cmvp-qgx5 , GO-2022-0769 , EUVD-2021-1252
- cvss
- 8.2
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.3%
- EPSS 1.3% chance of exploitation in 30 days, percentile 70%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- go github.com/binance-chain/tss-lib 1.2.0
- binance tss-lib 1.2.0
Exploit prediction
1.28% chance of exploitation in the next 30 days, higher than 70% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 8.2 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N |
| NVD | 2.0 | 6.4 | AV:N/AC:L/Au:N/C:P/I:P/A:N |
| GitHub | 3.1 | 8.6 | 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 |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/binance-chain/tss-lib | <1.2.0 |
1.2.0 |
Classification
- Weakness
-
- CWE-276 Incorrect Default Permissions
References
-
github.com
/binance-chain/tss-lib/pull/89
web, patch, third-party-advisory
-
github.com
/binance-chain/tss-lib/pull/89/commits/7b7c17e90504d5dad94b938e84fec690bb1ec311
web, patch
-
github.com
/binance-chain/tss-lib/releases/tag/v1.2.0
web, release-notes, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2020-12118
advisory
-
github.com
/advisories/GHSA-399h-cmvp-qgx5
advisory
Sources
- CVE List CVE-2020-12118
- GitHub Advisory GHSA-399h-cmvp-qgx5
- NVD CVE-2020-12118
- OSV GO-2022-0769
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.