{"cve":"CVE-2022-43677","nvd":{"published":"2022-10-24T14:15:53.240","modified":"2026-06-17T05:07:06.033","status":"Modified","description":"In free5GC 3.2.1, a malformed NGAP message can crash the AMF and NGAP decoders via an index-out-of-range panic in aper.GetBitString.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","score":5.5},"cwes":[],"references":["https://github.com/free5gc/free5gc/issues/402","https://www.trendmicro.com/en_us/research/23/j/asn1-vulnerabilities-in-5g-cores.html","https://github.com/free5gc/free5gc/issues/402","https://www.trendmicro.com/en_us/research/23/j/asn1-vulnerabilities-in-5g-cores.html"],"products":["free5gc:free5gc"],"source":"nvd","synced_at":"2026-10-19T21:37:08.729216836+00:00"},"epss":{"cve":"CVE-2022-43677","score":0.00757,"percentile":0.552,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-59hj-62f5-fgmc","url":"https://osv.dev/vulnerability/GHSA-59hj-62f5-fgmc","summary":"free5GC vulnerable to malformed NGAP message crashing the AMF and NGAP decoders","modified":"2023-11-08T04:10:44.925060Z","packages":[{"ecosystem":"Go","name":"github.com/free5gc/free5gc","purl":"pkg:golang/github.com/free5gc/free5gc","ranges":["<=3.2.1"],"fixed":[]}]},{"id":"GO-2022-1083","url":"https://osv.dev/vulnerability/GO-2022-1083","summary":"Panic on malformed messages in github.com/free5gc/aper","modified":"2024-05-20T16:03:47Z","packages":[{"ecosystem":"Go","name":"github.com/free5gc/aper","purl":"pkg:golang/github.com/free5gc/aper","ranges":["all versions"],"fixed":[]}]}],"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."]}