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    CVE-2026-62351

    TDengine is a time-series database optimized for Internet of Things devices. Prior to 3.4.1.15, source/libs/transport/src/transComm.c transDecompressMsg() read STransCompMsg.contLen when pHead->comp == 1 without first validating that the RPC packet contained the 8-byte STransCompMsg structure, causing an unauthenticated out-of-bounds read, uncontrolled allocation, integer underflow, and server crash. This issue is fixed in version 3.4.1.15.

    Published:Jul 15, 2026
    Last Modified:Jul 15, 2026
    EPS:Jul 15, 2026
    EPSS Score:
    CVSS Score:7.5

    Affected Products

    Vendor
    Taosdata
    Product
    Tdengine

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-125 Out-of-bounds Read

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-540 Overread Buffers

    Related CVEs

    CVE-2026-62353 (CVSS 5.4) — TDengine is a time-series database optimized for Internet of Things devices. Prior to 3.4.1.14, source/libs/pa…
    CVE-2026-62348 (CVSS 5.4) — TDengine is a time-series database optimized for Internet of Things devices. Prior to 3.4.1.15, TDengine Enter…
    CVE-2026-62349 (CVSS 8.3) — TDengine is an open source, time-series database optimized for Internet of Things devices. In 3.4.1.6 and earl…
    CVE-2026-62350 (CVSS 7.2) — TDengine is an open source, time-series database optimized for Internet of Things devices. Prior to 3.4.1.15, …
    CVE-2026-62355 (CVSS 5.4) — TDengine is an open source, time-series database optimized for Internet of Things devices. Prior to 3.4.1.15, …
    CVE-2026-42542 (CVSS 7.5) — TDengine is an open source, time-series database optimized for Internet of Things devices. In versions 3.4.0.0…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High