CVE-2026-42542

CVE Enrichment

CVSS: 7.5 HIGH
EPSS: 0.56%
EPSS Percentile: 44.84%
CISA KEV: Not listed

Description

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.

Technical Details

CVSS Version: 3.1
CNA / NVD Source: security-advisories@github.com
Published: 11-Jun-2026 05:16
Last Modified: 23-Jul-2026 16:10
EPSS Date: 2026-10-10
CWE: CWE-191

CVSS Vector


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

Affected Products / Versions

tdengine / tdengine
Version / affected range: * · from (inclusive) 3.4.0.0 · before (exclusive) 3.4.1.6
cpe:2.3:a:tdengine:tdengine:*:*:*:*:*:*:*:*

References

Last enrichment sync: 11-Oct-2026 12:30
Sources: NVD · FIRST EPSS · CISA KEV
Latest successful provider update; providers refresh independently.

Reported Context (2)

(Red Hat OpenShift), GHSA-632h-h47v-g4x4 (OpenCode), CVE-2026-91765 (PHP), CVE-2026-96760 (Authlib), CVE-2026-42542, CVE-2026-44639 (TDengine), CVE-2026-86553, CVE-2026-86555, CVE-2026-86552, CVE-2026-86554 (ZTE Weekly Security Recap: Exploited Citrix NetScaler Flaw and Dozens of Vulnerabilities
The vulnerability, tracked as CVE-2026-42542 affects TDengine, a time-series database that organizations in sectors like manufacturing, energy, automotive, and IoT use to store and analyze large volumes of data Patched TDengine Flaw Lets Unauthenticated Attackers Crash Servers With One Packet

CVE (135)

People (1)

MITRE ATT&CK (1)

Vendors (2)

Products (3)

Industries (7)

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.