CVE-2026-82820

Description

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."

References

https://vuldb.com/vuln/397243/cti

https://vuldb.com/vuln/397243

https://vuldb.com/submit/876596

https://vuldb.com/cve/CVE-2026-82820

https://github.com/raind20001020/Poc/blob/main/flvmeta_heap_buffer_overflow

https://github.com/noirotm/flvmeta/issues/27

https://github.com/noirotm/flvmeta/commit/f412a33b9a84c2d1a9dee145a868feddbf64879e

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

CVSS v4

EPSS