{"cve":"CVE-2023-33242","nvd":{"published":"2023-08-09T22:15:11.180","modified":"2026-06-17T06:01:23.440","status":"Modified","description":"Crypto wallets implementing the Lindell17 TSS protocol might allow an attacker to extract the full ECDSA private key by exfiltrating a single bit in every signature attempt (256 in total) because of not adhering to the paper's security proof's assumption regarding handling aborts after a failed signature.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","score":8.1},"cwes":["CWE-74"],"references":["https://eprint.iacr.org/2017/552.pdf","https://github.com/fireblocks-labs/mpc-ecdsa-attacks-23","https://github.com/fireblocks-labs/zengo-lindell17-exploit-poc","https://www.fireblocks.com/blog/lindell17-abort-vulnerability-technical-report/","https://eprint.iacr.org/2017/552.pdf"],"products":["lindell17_project:lindell17"],"source":"nvd","synced_at":"2026-10-19T21:39:14.809778102+00:00"},"epss":{"cve":"CVE-2023-33242","score":0.01506,"percentile":0.74378,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}