CVE-2025-66017

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Source

https://cve.org/CVERecord?id=CVE-2025-66017

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-66017.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2025-66017

Aliases

Published

2025-11-25T19:59:07.956Z

Modified

2026-07-15T01:48:55.754109540Z

Severity

8.2 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N CVSS Calculator

Summary

CGGMP21 presignatures can be used in the way that significantly reduces security

Details

CGGMP24 is a state-of-art ECDSA TSS protocol that supports 1-round signing (requires 3 preprocessing rounds), identifiable abort, and a key refresh protocol. In versions 0.6.3 and prior of cggmp21 and version 0.7.0-alpha.1 of cggmp24, presignatures can be used in the way that significantly reduces security. cggmp24 version 0.7.0-alpha.2 release contains API changes that make it impossible to use presignatures in contexts in which it reduces security.

Database specific

{
    "cwe_ids": [
        "CWE-327"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/66xxx/CVE-2025-66017.json",
    "cna_assigner": "GitHub_M",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "cggmp21 <= 0.6.3"
                },
                {
                    "last_affected": "cggmp21 <= 0.6.3"
                }
            ],
            "source": "AFFECTED_FIELD"
        }
    ]
}

References

Affected packages

Git / github.com/lfdt-lockness/cggmp21

Affected ranges

Type

GIT

Repo

https://github.com/lfdt-lockness/cggmp21

Events

Introduced

3199f8845338a27d941b53663daaf88c5c8226f0

Last affected

3199f8845338a27d941b53663daaf88c5c8226f0

Database specific

{
    "extracted_events": [
        {
            "introduced": "cggmp24 = 0.7.0-alpha.1"
        },
        {
            "last_affected": "cggmp24 = 0.7.0-alpha.1"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Affected versions

cggmp24 = 0.*

cggmp24 = 0.7.0-alpha.1

cggmp24-keygen-v0.*

cggmp24-keygen-v0.7.0-alpha.1

paillier-zk-v0.*

paillier-zk-v0.7.0-alpha.1

v0.*

v0.7.0-alpha.1

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-66017.json"