CVE-2026-5300: coolercontrold before 4.0.0 (exclusive), 0.14.0 to before 4.0.0

CVE-2026-5300. CVSS 3.1 base score 9.1 (CRITICAL, NVD). EPSS 0.0028 (percentile 0.19344), scored 22-Oct-2026.

Affected technology

coolercontrold · before 4.0.0 (exclusive)
coolercontrol

coolercontrold · 0.14.0 to before 4.0.0
CoolerControl

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 3.1): Local · No privileges required · No user interaction required

Attack conditions (NVD, CVSS 3.1): Network (remote) · No privileges required · No user interaction required

What an attacker can do

Unauthenticated attackers can view and modify potentially sensitive data via HTTP requests. Vendor/CNA’s CVSS 3.1 assessment (base score 5.9/10) rates confidentiality, integrity and availability impact as low. NVD’s CVSS 3.1 assessment (base score 9.1/10) rates confidentiality and integrity impact as high; availability impact as none.

Published 24-Oct-2026 01:43 UTC

CWE: CWE-306
CCR priority: 36.5 /100 (P4)
CVSS 3.1: 9.1 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N · NVD
EPSS: 0.0028 · percentile 0.19344 · 2026-10-22
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-24 01:40:49.068977+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-5300.html