{"cve":"CVE-2021-27343","nvd":{"published":"2021-04-06T13:15:14.200","modified":"2026-06-17T03:44:40.273","status":"Modified","description":"SerenityOS Unspecified is affected by: Buffer Overflow. The impact is: obtain sensitive information (context-dependent). The component is: /Userland/Libraries/LibCrypto/ASN1/DER.h Crypto::der_decode_sequence() function. The attack vector is: Parsing RSA Key ASN.1.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","score":7.5},"cwes":["CWE-120"],"references":["https://github.com/SerenityOS/serenity/commit/48fbf6a88d4822a1e5470cf08f29464511bd72c1","https://github.com/SerenityOS/serenity/issues/5317","https://github.com/SerenityOS/serenity/pull/5344","https://github.com/SerenityOS/serenity/commit/48fbf6a88d4822a1e5470cf08f29464511bd72c1","https://github.com/SerenityOS/serenity/issues/5317"],"products":["serenityos:serenityos"],"source":"nvd","synced_at":"2026-10-19T21:17:01.373894544+00:00"},"epss":{"cve":"CVE-2021-27343","score":0.01673,"percentile":0.76847,"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."]}