{"cve":"CVE-2020-13132","nvd":{"published":"2020-07-09T18:15:10.663","modified":"2026-06-17T02:52:40.417","status":"Modified","description":"An issue was discovered in Yubico libykpiv before 2.1.0. An attacker can trigger an incorrect free() in the ykpiv_util_generate_key() function in lib/util.c through incorrect error handling code. This could be used to cause a denial of service attack.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":4.6},"cwes":["CWE-763"],"references":["https://blog.inhq.net/posts/yubico-libykpiv-vuln/","https://www.yubico.com/support/security-advisories/ysa-2020-02/","https://blog.inhq.net/posts/yubico-libykpiv-vuln/","https://www.yubico.com/support/security-advisories/ysa-2020-02/"],"products":["yubico:libykpiv","yubico:piv_tool_manager","yubico:yubikey_smart_card_minidriver"],"source":"nvd","synced_at":"2026-10-19T21:06:22.076270124+00:00"},"epss":{"cve":"CVE-2020-13132","score":0.00638,"percentile":0.50595,"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."]}