CVE-2026-82820
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
Summary
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."
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| n/a | FLVMeta | 1.2.0 | affected |
| n/a | FLVMeta | 1.2.1 | affected |
| n/a | FLVMeta | 1.2.2 | affected |
Weaknesses
- CWE-122: Heap-based Buffer Overflow
- CWE-119: Memory Corruption
References
- https://vuldb.com/vuln/397243
- https://vuldb.com/vuln/397243/cti
- https://vuldb.com/cve/CVE-2026-82820
- https://vuldb.com/submit/876596
- https://github.com/noirotm/flvmeta/issues/27
- https://github.com/raind20001020/Poc/blob/main/flvmeta_heap_buffer_overflow
- https://github.com/noirotm/flvmeta/commit/f412a33b9a84c2d1a9dee145a868feddbf64879e
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