{"id":"CVE-2024-34250","aliases":["AZL-40393","AZL-40433","EUVD-2024-34712","GHSA-7wfw-7p9h-4j2c"],"status":"published","title":"A heap buffer overflow vulnerability was discovered in Bytecode Alliance wasm-micro-runtime v2.0...","description":"A heap buffer overflow vulnerability was discovered in Bytecode Alliance wasm-micro-runtime v2.0.0 which allows a remote attacker to cause at least a denial of service via the \"wasm_loader_check_br\" function in core/iwasm/interpreter/wasm_loader.c.","severity":{"version":"3.1","score":6.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-12","score":0.00332,"percentile":0.26768,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-122"],"published":"2024-05-06T00:00:00Z","modified":"2026-11-05T05:40:51Z","fixes":[{"ecosystem":"Azure Linux:3","package":"fluent-bit","fixed_in":["3.0.6-1"],"sources":["osv"]},{"ecosystem":"Azure Linux:2","package":"fluent-bit","fixed_in":["2.2.3-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Azure Linux:3","package":"fluent-bit","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.6-1"}]}]},{"source":"osv","ecosystem":"Azure Linux:2","package":"fluent-bit","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.2.3-1"}]}]}],"products":[{"vendor":"bytecodealliance","product":"wasm_micro_runtime"},{"vendor":"bytecodealliance","product":"webassembly_micro_runtime"}],"references":[{"url":"https://github.com/bytecodealliance/wasm-micro-runtime/issues/3346","tags":["x_transferred","Exploit","Issue Tracking","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-34250","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-7wfw-7p9h-4j2c"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/34xxx/CVE-2024-34250.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2024-34250","description":"A heap buffer overflow vulnerability was discovered in Bytecode Alliance wasm-micro-runtime v2.0.0 which allows a remote attacker to cause at least a denial of service via the \"wasm_loader_check_br\" function in core/iwasm/interpreter/wasm_loader.c.","status":"published","published":"2024-05-06T00:00:00Z","modified":"2024-08-02T02:51:10.896Z","cvss":[{"version":"3.1","score":6.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"adp"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T14:34:23.516065Z"}],"euvd":[{"id":"EUVD-2024-34712","description":"A heap buffer overflow vulnerability was discovered in Bytecode Alliance 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core/iwasm/interpreter/wasm_loader.c.","status":"published","published":"2024-05-06T18:30:35Z","modified":"2024-07-03T18:39:12Z","cvss":[{"version":"3.1","score":6.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T14:57:35.422762Z"}],"nvd":[{"id":"CVE-2024-34250","description":"A heap buffer overflow vulnerability was discovered in Bytecode Alliance wasm-micro-runtime v2.0.0 which allows a remote attacker to cause at least a denial of service via the \"wasm_loader_check_br\" function in core/iwasm/interpreter/wasm_loader.c.","status":"published","published":"2024-05-06T16:15:14.033Z","modified":"2026-06-17T07:33:08.787Z","cvss":[{"version":"3.1","score":6.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T14:09:56.122111Z"}],"osv":[{"id":"CVE-2024-34250","description":"A heap buffer overflow vulnerability was discovered in Bytecode Alliance wasm-micro-runtime v2.0.0 which allows a remote attacker to cause at least a denial of service via the \"wasm_loader_check_br\" function in core/iwasm/interpreter/wasm_loader.c.","status":"published","published":"2024-05-06T00:00:00Z","modified":"2026-10-28T02:30:49.245587763Z","cvss":[{"version":"3.1","score":6.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:44:40.391953Z"},{"id":"AZL-40393","title":"CVE-2024-34250 affecting package fluent-bit for versions less than 3.0.6-1","description":"A heap buffer overflow vulnerability was discovered in Bytecode Alliance wasm-micro-runtime v2.0.0 which allows a remote attacker to cause at least a denial of service via the \"wasm_loader_check_br\" function in core/iwasm/interpreter/wasm_loader.c.","status":"published","published":"2024-05-06T16:15:14Z","modified":"2026-11-05T05:40:51Z","updated_at":"2026-11-05T16:41:19.893001Z"},{"id":"AZL-40433","title":"CVE-2024-34250 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