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CVE-2021-46879

An issue was discovered in Treasure Data Fluent Bit 1.7.1 a wrong variable is used to get the msgpack data resulting in a heap overflow in flb_msgpack_gelf_value_ext. An attacker can craft a malicious file and tick the victim to open the file with the software triggering a heap overflow 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-2021-46879 historical changes made to the vulnerability by NVD, CISA and MITRE:

DateActor / SourceAction / DescriptionTypePrevious valueNew value
29.10.2026nvd@nist.govInitial Analysis & CVSS Vector AssignmentCVSS V3.1—CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
11.04.2023CISA CoordinatorSSVC Risk Re-assessmentSSVC / KEVexploitation: noneexploitation: none
11.04.2023MITRE / NVDNew CVE Record Received & IngestedCVE Created—CVE-2021-46879

Get this vulnerability through the API

Affected products, version ranges, exploitation status and patch information in a single request, with a free key.

curl -H "x-api-key: $DAYBREACH_API_KEY" \
  "https://api.daybreach.dev/api/v1/intel/cves/CVE-2021-46879"
CVE-2021-46879 · An issue was discovered in Treasure Data…