{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-82820","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","state":"PUBLISHED","assignerShortName":"VulDB","dateReserved":"2026-08-31T05:57:01.935Z","datePublished":"2026-08-31T18:30:08.737Z","dateUpdated":"2026-09-01T18:10:42.105Z"},"containers":{"cna":{"providerMetadata":{"orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","shortName":"VulDB","dateUpdated":"2026-08-31T18:30:08.737Z"},"title":"FLVMeta AMF String Processing amf.c amf_string_new heap-based overflow","problemTypes":[{"descriptions":[{"type":"CWE","cweId":"CWE-122","lang":"en","description":"Heap-based Buffer Overflow"}]},{"descriptions":[{"type":"CWE","cweId":"CWE-119","lang":"en","description":"Memory Corruption"}]}],"affected":[{"vendor":"n/a","product":"FLVMeta","versions":[{"version":"1.2.0","status":"affected"},{"version":"1.2.1","status":"affected"},{"version":"1.2.2","status":"affected"}],"cpes":["cpe:2.3:a:flvmeta:flvmeta:*:*:*:*:*:*:*:*"],"modules":["AMF String Processing"]}],"descriptions":[{"lang":"en","value":"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.\""}],"metrics":[{"cvssV4_0":{"version":"4.0","baseScore":5.3,"vectorString":"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","baseSeverity":"MEDIUM"}},{"cvssV3_1":{"version":"3.1","baseScore":4.3,"vectorString":"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","baseSeverity":"MEDIUM"}},{"cvssV3_0":{"version":"3.0","baseScore":4.3,"vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C","baseSeverity":"MEDIUM"}},{"cvssV2_0":{"version":"2.0","baseScore":5,"vectorString":"AV:N/AC:L/Au:N/C:N/I:N/A:P/E:POC/RL:OF/RC:C"}}],"timeline":[{"time":"2026-08-31T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2026-08-31T02:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2026-08-31T09:09:16.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"Raind (VulDB User)","type":"reporter"},{"lang":"en","value":"VulDB CNA Team","type":"coordinator"}],"references":[{"url":"https://vuldb.com/vuln/397243","name":"VDB-397243 | FLVMeta AMF String Processing amf.c amf_string_new heap-based overflow","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/vuln/397243/cti","name":"VDB-397243 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/cve/CVE-2026-82820","name":"CVE-2026-82820 | CVE Analysis and Report","tags":["third-party-advisory"]},{"url":"https://vuldb.com/submit/876596","name":"Submit #876596 | flvmeta 1.2.2 Heap-based Buffer Overflow","tags":["third-party-advisory"]},{"url":"https://github.com/noirotm/flvmeta/issues/27","tags":["issue-tracking"]},{"url":"https://github.com/raind20001020/Poc/blob/main/flvmeta_heap_buffer_overflow","tags":["exploit"]},{"url":"https://github.com/noirotm/flvmeta/commit/f412a33b9a84c2d1a9dee145a868feddbf64879e","tags":["patch"]}],"tags":["x_open-source"],"x_generator":["VulDB PVTS v202608"]},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-01T17:23:03.534466Z","id":"CVE-2026-82820","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-09-01T18:10:42.105Z"}}]}}