Is cggmp21 affected by CVE-2025-66017?

crates.io cggmp21 is affected in <=0.6.3.

Is CVE-2025-66017 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.2%.

high

CVE-2025-66017

Q: Is CVE-2025-66017 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.2%.

crates.io · cggmp21 • crates.io · cggmp24

Summary

cggmp24 and cggmp21 are vulnerable to signature forgery through altered presignatures

Severity: high
EPSS: 0.2% (p9)
Also known as: GHSA-8frv-q972-9rq5, GHSA-8frv-q972-9rq5#cggmp21, GHSA-8frv-q972-9rq5#cggmp24, RUSTSEC-2025-0127, RUSTSEC-2025-0128
Published: 2025-11-25

References

https://github.com/LFDT-Lockness/cggmp21/security/advisories/GHSA-8frv-q972-9rq5
https://nvd.nist.gov/vuln/detail/CVE-2025-66017
https://github.com/LFDT-Lockness/cggmp21/commit/9d98157e151596573cb071da59d27a4e0ac9b8dc

Related advisories

CVE-2025-66016 — critical · crates.io/cggmp21
GHSA-rm66-9gh4-4gp8 — medium · crates.io/cggmp21

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Sources: CISA KEV (public domain), OSV.dev & GitHub Advisory Database (CC-BY-4.0), FIRST EPSS, NVD/CWE (public domain). Served live from the Stateward advisory database.