Vulnerability Report

CVE-2026-42542

Title: TDengine Unauthenticated Remote DoS

Other

Proof Of Concept

No public PoC currently indexed for CVE-2026-42542.

CWE Category CWE-191

Published Date Jun 10, 2026

Modified Date Jun 12, 2026

Exploit Status Not Found

Score 7.5 CVSS v3.1

Exploit Probability (EPSS)

0.54%

Vulnerability Summary

CVE-2026-42542: TDengine is an open source, time-series database optimized for Internet of Things devices. In versions 3.4.0.0 through 3.4.1.5, an unauthenticated remote attacker can crash the taosd server process by sending a single crafted RPC packet. No credentials or prior session state are required. Version 3.4.1.6 fixes the issue.

Impacted Vendors

tdengine 1

Reference Links

https://github.com/taosdata/TDengine/releases/tag/ver-3.4.1.6 https://github.com/taosdata/TDengine/security/advisories/GHSA-vg95-j2hf-hvjx

CVSS v3.1

Source Entity [email protected]

Severity HIGH

7.5

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2026-42542 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

June 12, 2026 MODIFIED

Vulnerability data updated via NVD.

June 11, 2026 MODIFIED

Vulnerability data updated via NVD.

June 10, 2026 MODIFIED

Vulnerability data updated via NVD.

Attack Vector Matrix

Access Vector NETWORK

Complexity LOW

Privileges N/A

Interaction NONE

CVSS Vector String


                                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Stack

No specific products linked.