{"cve":"CVE-2020-12762","nvd":{"published":"2020-05-09T18:15:11.283","modified":"2026-10-14T10:17:26.413","status":"Modified","description":"json-c through 0.14 has an integer overflow and out-of-bounds write via a large JSON file, as demonstrated by printbuf_memappend.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-190","CWE-787"],"references":["https://cert-portal.siemens.com/productcert/pdf/ssa-637483.pdf","https://github.com/json-c/json-c/pull/592","https://github.com/rsyslog/libfastjson/issues/161","https://lists.debian.org/debian-lts-announce/2020/05/msg00032.html","https://lists.debian.org/debian-lts-announce/2020/05/msg00034.html"],"products":["canonical:ubuntu_linux","debian:debian_linux","fedoraproject:fedora","json-c:json-c","siemens:sinec_ins"],"source":"nvd","synced_at":"2026-10-19T21:04:18.695612450+00:00"},"epss":{"cve":"CVE-2020-12762","score":0.01895,"percentile":0.79472,"date":"2026-10-25"},"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."]}