CVE-2026-62351

HIGH

TDengine: Unauthenticated Remote Denial of Service via Out-of-Bounds Read in transDecompressMsg

Title source: cna
STIX 2.1

Description

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.

References (1)

Core 1
Core References

Scores

CVSS v3 7.5
EPSS 0.0032
EPSS Percentile 24.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact partial

Details

CWE
CWE-125
Status published
Products (1)
taosdata/TDengine < 3.4.1.15
Published Jul 15, 2026
Tracked Since Jul 16, 2026