CVE-2025-58359 json
frost-core: refresh shares with smaller min_signers will reduce group security
published 2025-09-03 14 mo ago modified 2026-06-17 4 mo ago also GHSA-wgq8-vr6r-mqxm , EUVD-2025-26877
- cvss
- 6.0
- version 4.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 23%
- public exploits
- 0
- none known
Summary
ZF FROST is a Rust implementation of FROST (Flexible Round-Optimised Schnorr Threshold signatures). In versions 2.0.0 through 2.1.0, refresh shares with smaller min_signers will reduce security of group. The inability to change min_signers (i.e. the threshold) with the refresh share functionality (frost_core::keys::refresh module) was not made clear to users. Using a smaller value would not decrease the threshold, and attempts to sign using a smaller threshold would fail. Additionally, after refreshing the shares with a smaller threshold, it would still be possible to sign with the original threshold, potentially causing a security loss to the participant's shares. This issue is fixed in version 2.2.0.
Patch / fix
- crates.io frost-core 2.2.0
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 14 mo ago
Exploit prediction
0.30% chance of exploitation in the next 30 days, higher than 23% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 6.0 | CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N |
| CNA | 4.0 | 6.0 | CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| crates.io | frost-core | >=2.0.0, <2.2.0 |
2.2.0 |
Affected products
- ZcashFoundation frost
Classification
References
-
github.com
/ZcashFoundation/frost/commit/379ef689c733b3d9c80fd409071d4f3af4dafed2
web
-
github.com
/ZcashFoundation/frost/security/advisories/GHSA-wgq8-vr6r-mqxm
web
-
github.com
/ZcashFoundation/frost/releases/tag/frost-core%2Fv2.2.0
web
-
nvd.nist.gov
/vuln/detail/CVE-2025-58359
advisory
-
github.com
/ZcashFoundation/frost
package
Sources
- CVE List CVE-2025-58359
- GitHub Advisory GHSA-wgq8-vr6r-mqxm
- NVD CVE-2025-58359
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