How severe is CVE-2020-28498?

CVE-2020-28498 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2020-28498 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-2020-28498?

CVE-2020-28498 affects Indutny Elliptic. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-28498?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-28498 published?

CVE-2020-28498 was published on 2021-02-02 and last updated on 2026-06-17.

CVE-2020-28498

CVE-2020-28498 is a medium-severity vulnerability in Indutny Elliptic with a CVSS 3.x base score of 6.8. 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-327.

Key facts

Severity: Medium (CVSS 3.x base score 6.8)
CVSS v2: 4.3
EPSS exploit prediction: 1% (66th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-327
Affected product: Indutny Elliptic
Published: 2021-02-02
Last modified: 2026-06-17

Description

The package elliptic before 6.5.4 are vulnerable to Cryptographic Issues via the secp256k1 implementation in elliptic/ec/key.js. There is no check to confirm that the public key point passed into the derive function actually exists on the secp256k1 curve. This results in the potential for the private key used in this implementation to be revealed after a number of ECDH operations are performed.

Frequently asked questions

What is CVE-2020-28498?: The package elliptic before 6.5.4 are vulnerable to Cryptographic Issues via the secp256k1 implementation in elliptic/ec/key.js. There is no check to confirm that the public key point passed into the derive function actually exists on the secp256k1 curve. This results in the potential for the private key used in this implementation to be revealed after a number of ECDH operations are performed.
How severe is CVE-2020-28498?: CVE-2020-28498 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2020-28498 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-2020-28498?: CVE-2020-28498 affects Indutny Elliptic. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-28498?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-28498 published?: CVE-2020-28498 was published on 2021-02-02 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:indutny:elliptic:*:*:*:*:*:node.js:*:*

More vulnerabilities in Indutny Elliptic

CVE-2024-48949 — Critical (CVSS 9.1): The verify function in lib/elliptic/eddsa/index.js in the Elliptic package before 6.5.6 for Node.js omits…
CVE-2020-13822 — High (CVSS 7.7): The Elliptic package 6.5.2 for Node.js allows ECDSA signature malleability via variations in encoding, leading '\0'…
CVE-2024-42460 — Medium (CVSS 5.3): In the Elliptic package 6.5.6 for Node.js, ECDSA signature malleability occurs because there is a missing check for…
CVE-2024-42459 — Medium (CVSS 5.3): In the Elliptic package 6.5.6 for Node.js, EDDSA signature malleability occurs because there is a missing signature…
CVE-2024-48948 — Medium (CVSS 4.8): The Elliptic package 6.5.7 for Node.js, in its for ECDSA implementation, does not correctly verify valid signatures if…

All CVEs affecting Indutny Elliptic →

Other CWE-327 (Use of a Broken or Risky Cryptographic Algorithm) vulnerabilities

CVE-2026-50086 — Critical (CVSS 10.0): The Aqara IAM/SSO gateway (gw-builder.aqara.com) exposes bidirectional AES round-trups against the platform's signing…
CVE-2026-21718 — Critical (CVSS 10.0): An authentication bypass vulnerability exists in Copeland XWEB Pro version 1.12.1 and prior, enabling any attackers to…
CVE-2025-54426 — Critical (CVSS 9.9): Polkadot Frontier is an Ethereum and EVM compatibility layer for Polkadot and Substrate. In versions prior to commit…
CVE-2024-51478 — Critical (CVSS 9.9): YesWiki is a wiki system written in PHP. Prior to 4.4.5, the use of a weak cryptographic algorithm and a hard-coded…
CVE-2026-28252 — Critical (CVSS 9.8): A Use of a Broken or Risky Cryptographic Algorithm vulnerability in Trane Tracer SC, Tracer SC+, and Tracer Concierge…
CVE-2025-13476 — Critical (CVSS 9.8): Rakuten Viber Cloak mode in Android v25.7.2.0g and Windows v25.6.0.0–v25.8.1.0 uses a static and predictable TLS…

Browse all CWE-327 (Use of a Broken or Risky Cryptographic Algorithm) vulnerabilities →