CVE-2026-116733
flatcc through 0.6.4 contains an out-of-bounds read vulnerability in __flatcc_json_parser_number that allows attackers to read past the inpu
CVSS
3.7
Low
EPSS
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KEV
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Exploit Today
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0-100
Published: Oct 26, 2026 · Last modified: Oct 26, 2026 · CWE-125
Not enough EPSS history yet.
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.
- github.comhttps://github.com/dvidelabs/flatcc
- github.comhttps://github.com/dvidelabs/flatcc/blob/v0.6.4/src/runtime/json_parser.c#L539-L543
- github.comhttps://github.com/dvidelabs/flatcc/commit/356792dc155a9e685acdfe0ec1e209bdadcb4ab9
- hackmd.iohttps://hackmd.io/@haindpwn/flatcc-json-number-oob-read
- www.vulncheck.comhttps://www.vulncheck.com/advisories/flatcc-through-0.6.4-out-of-bounds-read-via-flatcc-json-parser-number
CVECVSSEPSSKEVRExploitTitleMod.
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