How severe is CVE-2020-12118?

CVE-2020-12118 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability none.

Is CVE-2020-12118 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-12118?

CVE-2020-12118 affects Binance Tss-lib. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-12118?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-12118 published?

CVE-2020-12118 was published on 2020-04-23 and last updated on 2026-06-17.

CVE-2020-12118

CVE-2020-12118 is a high-severity vulnerability in Binance Tss-lib with a CVSS 3.x base score of 8.2. 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-276.

Key facts

Severity: High (CVSS 3.x base score 8.2)
CVSS v2: 6.4
EPSS exploit prediction: 1% (66th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-276
Affected product: Binance Tss-lib
Published: 2020-04-23
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2020-12118?: 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.
How severe is CVE-2020-12118?: CVE-2020-12118 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability none.
Is CVE-2020-12118 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-12118?: CVE-2020-12118 affects Binance Tss-lib. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-12118?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-12118 published?: CVE-2020-12118 was published on 2020-04-23 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:binance:tss-lib:*:*:*:*:*:*:*:*

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