CVE-2026-40454: 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 malform
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.
Details
Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-40454
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-404540.14% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 4% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-40454 | coverage & exploitation status | NVD · CVE.org |
Recent advisories for Out-of-bounds Read
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- unknownCVE-2026-14461: mtr is vulnerable to Out-of-bound read vulnerability in ipinfo_lookup() function. An attacker …nvd · 2026-07-10
- highCVE-2026-11404: Cesanta Mongoose before 7.22 contains an out-of-bounds read in the built-in TLS server functio…nvd · 2026-07-09
- mediumCVE-2026-58307: Out-of-bounds read, Reachable assertion vulnerability in Samsung Open Source Escargot allows O…nvd · 2026-07-09
- mediumCVE-2026-58304: Out-of-bounds read, Out-of-bounds write vulnerability in Samsung Open Source Escargot allows O…nvd · 2026-07-09
- mediumCVE-2026-29007: U-Boot through 2026.04-rc3 contains an out-of-bounds read vulnerability in tcp_rx_state_machin…nvd · 2026-07-08
- mediumCVE-2026-57257: During the PRC parsing stage, there is a lack of boundary verification for the PRC entity inde…nvd · 2026-07-08
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