CVE-2026-62351CWE-125

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

High · published July 15, 2026

CVSS v3.1
7.5
EPSS
0%
Percentile
38.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00460 · 38.9th percentile
Weakness
CWE-125 · Out-of-bounds Read
Published
2026-07-15T19:08Z
EPSS history
Timeline
  • 15 JUL 19:08Z
    TDengine: Unauthenticated Remote Denial of Service via Out-of-Bounds Read in transDecompressMsg
    cvelistv5