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CVE-2026-40454highCWE-125CWE-20

Apache IoTDB C++ client: Out-of-bounds reads in C++ client TsBlock deserializer crash client process on malformed server data

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7.5epss 0.5%
exploitation probability
0.5%top 59% of all CVEs
observed exploitation
nono source reports it
Out-of-bounds Read, Improper Input Validation vulnerability in Apache IoTDB C++ client. Out-of-bounds reads in IoTDB C++ client TsBlock deserializer crash client process on malformed server data. This issue affects Apache IoTDB C++ client: from 1.3.5 before 1.3.8, from 2.0.5 before 2.0.10. Users are recommended to upgrade to version 2.0.10, which fixes the issue.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H