CVE-2021-46878
An issue was discovered in Treasure Data Fluent Bit 1.7.1 erroneous parsing in flb_pack_msgpack_to_json_format leads to type confusion bug that interprets whatever is on the stack as msgpack maps and arrays leading to use-after-free. This can be used by an attacker to craft a specially craft file and trick the victim opening it using the affect software triggering use-after-free and execute arbitrary code on the target system.
CVSS score
7.8
EPSS probability
%0.4
Risk score
0.0
Published
3 y ago
Vulnerability Timeline (Change History)
CVE-2021-46878 historical changes made to the vulnerability by NVD, CISA and MITRE:
| Date | Actor / Source | Action / Description | Type | Previous value | New value |
|---|---|---|---|---|---|
| 29.10.2026 | nvd@nist.gov | Initial Analysis & CVSS Vector Assignment | CVSS V3.1 | — | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| 11.04.2023 | CISA Coordinator | SSVC Risk Re-assessment | SSVC / KEV | exploitation: none | exploitation: none |
| 11.04.2023 | MITRE / NVD | New CVE Record Received & Ingested | CVE Created | — | CVE-2021-46878 |
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