{"cve":"CVE-2021-24117","nvd":{"published":"2021-07-14T14:15:08.810","modified":"2026-06-17T03:39:25.470","status":"Modified","description":"In Apache Teaclave Rust SGX SDK 1.1.3, a side-channel vulnerability in base64 PEM file decoding allows system-level (administrator) attackers to obtain information about secret RSA keys via a controlled-channel and side-channel attack on software running in isolated environments that can be single stepped, especially Intel SGX.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N","score":4.9},"cwes":["CWE-203"],"references":["https://docs.rs/crate/sgx_tstd/1.1.1","https://github.com/UzL-ITS/util-lookup/blob/main/cve-vulnerability-publication.md","https://github.com/dingelish/rust-base64/commit/a554b7ae880553db6dde8a387101a093911d5b2a","https://docs.rs/crate/sgx_tstd/1.1.1","https://github.com/UzL-ITS/util-lookup/blob/main/cve-vulnerability-publication.md"],"products":["apache:teaclave_sgx_sdk"],"source":"nvd","synced_at":"2026-10-19T21:21:13.713336758+00:00"},"epss":{"cve":"CVE-2021-24117","score":0.02221,"percentile":0.82683,"date":"2026-11-01"},"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."]}