FLVMeta AMF String Processing amf.c amf_string_new heap-based overflow
33Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 5.3epss 0.6%
exploitation probability
0.6%top 52% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
A vulnerability was found in FLVMeta up to 1.2.2. Affected is the function amf_string_new of the file src/amf.c of the component AMF String Processing. The manipulation of the argument length results in heap-based buffer overflow. The attack can be launched remotely. The exploit has been made public and could be used. The patch is identified as f412a33b9a84c2d1a9dee145a868feddbf64879e. A patch should be applied to remediate this issue. The project maintainer doubts the security impact: "While I acknowledged the bugs and provided fixes, I have yet to see any way to exploit these alleged vulnerabilities."
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
Affected products
n/a · FLVMetapublic PoCs found — 1
cve_referencegithub.com/raind20001020/Poc/blob/main/flvmeta_heap_buffer_overflowunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
References
https://github.com/noirotm/flvmeta/commit/f412a33b9a84c2d1a9dee145a868feddbf64879ehttps://github.com/noirotm/flvmeta/issues/27https://github.com/raind20001020/Poc/blob/main/flvmeta_heap_buffer_overflowhttps://vuldb.com/cve/CVE-2026-82820https://vuldb.com/submit/876596https://vuldb.com/vuln/397243https://vuldb.com/vuln/397243/cti