CVE-2026-82820
FLVMeta AMF String Processing amf.c amf_string_new heap-based overflow
CVSS Score
4.3
EPSS Score
0.0%
EPSS Percentile
0th
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."
| CWE | CWE-122 CWE-119 |
| Vendor | n/a |
| Product | flvmeta |
| Published | Aug 31, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
n/a / FLVMeta
1.2.0 1.2.1 1.2.2
References
vuldb.com: https://vuldb.com/vuln/397243 vuldb.com: https://vuldb.com/vuln/397243/cti vuldb.com: https://vuldb.com/cve/CVE-2026-82820 vuldb.com: https://vuldb.com/submit/876596 github.com: https://github.com/noirotm/flvmeta/issues/27 github.com: https://github.com/raind20001020/Poc/blob/main/flvmeta_heap_buffer_overflow github.com: https://github.com/noirotm/flvmeta/commit/f412a33b9a84c2d1a9dee145a868feddbf64879e
Credits
🔍 Raind (VulDB User) VulDB CNA Team