{"affected":[{"defaultStatus":"unaffected","ecosystem":"github","packageName":"dvidelabs/flatcc","product":"flatcc","source":"CNA: VulnCheck","vendor":"dvidelabs","versions":[{"lessThanOrEqual":"0.6.4","status":"affected","version":"0","versionType":"custom"}]}],"cveId":"CVE-2026-116733","cwes":["CWE-125"],"description":"flatcc through 0.6.4 contains an out-of-bounds read vulnerability in __flatcc_json_parser_number that allows attackers to read past the input buffer via numbers ending in a decimal point. Attackers can supply untrusted JSON ending immediately after a decimal point to generated parsers, crashing applications when the buffer ends at an unmapped page.","epss":{"date":"2026-11-02","percentile":0.32222,"score":0.00382},"exploits":[{"kind":"exploit","source":"ADP: CISA-ADP","url":"https://hackmd.io/@haindpwn/cve-2026-116733-116734-flatcc-json-number-oob-read"}],"kev":null,"metrics":[{"score":6.3,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","version":"4.0"},{"score":3.7,"severity":"low","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.1"}],"modifiedAt":1793643995453,"publishedAt":1793051554304,"references":[{"source":"CNA: VulnCheck","tags":["patch"],"url":"https://github.com/dvidelabs/flatcc/commit/356792dc155a9e685acdfe0ec1e209bdadcb4ab9"},{"source":"CNA: VulnCheck","tags":["product"],"url":"https://github.com/dvidelabs/flatcc"},{"source":"CNA: VulnCheck","tags":["technical-description"],"url":"https://github.com/dvidelabs/flatcc/blob/v0.6.4/src/runtime/json_parser.c#L539-L543"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://hackmd.io/@haindpwn/flatcc-json-number-oob-read"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/flatcc-through-0.6.4-out-of-bounds-read-via-flatcc-json-parser-number"},{"source":"ADP: CISA-ADP","tags":["exploit"],"url":"https://hackmd.io/@haindpwn/cve-2026-116733-116734-flatcc-json-number-oob-read"}],"remediation":[{"kind":"fix","source":"CNA: VulnCheck","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://github.com/dvidelabs/flatcc/commit/356792dc155a9e685acdfe0ec1e209bdadcb4ab9"}],"revision":"f06cb5d3a2e7268986f4dbd5629cef1f11bf836e4e65633ec02c194c7cb4818f","sources":[{"modifiedAt":1793643995453,"name":"CNA: VulnCheck","retrievedAt":1793646533586,"url":"https://www.cve.org/CVERecord?id=CVE-2026-116733"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793646542678,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-116733"}],"ssvc":{"assessedAt":1793643951679,"automatable":"no","exploitation":"poc","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"flatcc through 0.6.4 Out-of-Bounds Read via __flatcc_json_parser_number","updatedAt":1793646542678}