CVE Catalog

CVE-2026-40454

HighCVSS 7.5
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.14%

4th percentile - higher than 4% of all known CVEs

Summary

An out-of-bounds read and improper input validation vulnerability in the Apache IoTDB C++ client causes crashes during TsBlock deserialization when processing malformed server data.

Risk Assessment

A malicious server can send crafted data to crash the IoTDB C++ client, disrupting applications that rely on it and potentially causing data unavailability.

Recommendation

Upgrade the Apache IoTDB C++ client to version 2.0.10 immediately, which fixes the vulnerability.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS