CVE-2026-116734: medium-severity vulnerability in dvidelabs flatcc
flatcc through 0.6.4 Out-of-Bounds Read via verifier check_header
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.3epss 0.4%
flatcc through 0.6.4 contains an integer overflow vulnerability in the check_header function of the FlatBuffers verifier because its overflow guard is dead code. On 32-bit builds, attackers can supply a crafted buffer offset that wraps the bounds check, causing an out-of-bounds read before the buffer and crashing the process.
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
Affected products
dvidelabs · flatccRelated CVEs — dvidelabs flatcc
In the same product, most dangerous first.
References
https://github.com/dvidelabs/flatcchttps://github.com/dvidelabs/flatcc/blob/v0.6.4/src/runtime/verifier.c#L126-L137https://github.com/dvidelabs/flatcc/commit/0df9c097a19badc8bd22d93af8fd47bd291e5d9fhttps://hackmd.io/@haindpwn/flatcc-json-number-oob-readhttps://www.vulncheck.com/advisories/flatcc-through-0.6.4-out-of-bounds-read-via-verifier-check-header