{"cve":"CVE-2021-41771","nvd":{"published":"2021-11-08T06:15:08.057","modified":"2026-06-17T04:08:53.673","status":"Modified","description":"ImportedSymbols in debug/macho (for Open or OpenFat) in Go before 1.16.10 and 1.17.x before 1.17.3 Accesses a Memory Location After the End of a Buffer, aka an out-of-bounds slice situation.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-119"],"references":["https://cert-portal.siemens.com/productcert/pdf/ssa-744259.pdf","https://groups.google.com/g/golang-announce/c/0fM21h43arc","https://lists.debian.org/debian-lts-announce/2022/01/msg00016.html","https://lists.debian.org/debian-lts-announce/2022/01/msg00017.html","https://lists.debian.org/debian-lts-announce/2023/04/msg00021.html"],"products":["debian:debian_linux","fedoraproject:fedora","golang:go"],"source":"nvd","synced_at":"2026-10-19T21:24:39.218183596+00:00"},"epss":{"cve":"CVE-2021-41771","score":0.04698,"percentile":0.91803,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GO-2021-0263","url":"https://osv.dev/vulnerability/GO-2021-0263","summary":"Panic on invalid symbol tables in debug/macho","modified":"2024-05-20T16:03:47Z","packages":[{"ecosystem":"Go","name":"stdlib","purl":"pkg:golang/stdlib","ranges":["<1.16.10",">=1.17.0-0 <1.17.3"],"fixed":["1.16.10","1.17.3"]}]}],"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."]}