{"cve":"CVE-2021-22570","nvd":{"published":"2022-01-26T14:15:08.067","modified":"2026-06-17T03:37:26.873","status":"Modified","description":"Nullptr dereference when a null char is present in a proto symbol. The symbol is parsed incorrectly, leading to an unchecked call into the proto file's name during generation of the resulting error message. Since the symbol is incorrectly parsed, the file is nullptr. We recommend upgrading to version 3.15.0 or greater.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-476"],"references":["https://github.com/protocolbuffers/protobuf/releases/tag/v3.15.0","https://lists.debian.org/debian-lts-announce/2023/04/msg00019.html","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3DVUZPALAQ34TQP6KFNLM4IZS6B32XSA/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5PAGL5M2KGYPN3VEQCRJJE6NA7D5YG5X/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BTRGBRC5KGCA4SK5MUNLPYJRAGXMBIYY/"],"products":["debian:debian_linux","fedoraproject:fedora","google:protobuf","netapp:active_iq_unified_manager","netapp:oncommand_insight","netapp:oncommand_workflow_automation","netapp:snapcenter","oracle:mysql"],"source":"nvd","synced_at":"2026-10-19T21:27:20.926095847+00:00"},"epss":{"cve":"CVE-2021-22570","score":0.0266,"percentile":0.85698,"date":"2026-10-31"},"kev":null,"osv":[{"id":"PYSEC-2022-48","url":"https://osv.dev/vulnerability/PYSEC-2022-48","summary":"","modified":"2026-01-28T03:41:23.240277Z","packages":[{"ecosystem":"PyPI","name":"protobuf","purl":"pkg:pypi/protobuf","ranges":["<3.15.0"],"fixed":["3.15.0"]}]}],"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."]}