P4Verified

CVE-2026-21806: bigfix service management 27; +1 more affected products

CVE-2026-21806. CVSS 3.1 base score 9.8 (CRITICAL, NVD). EPSS 0.00153 (percentile 0.03928), scored 13-Oct-2026.

Affected technology

bigfix service management · 27
hcltech

HCL BigFix Service Management · Version 27
HCL Software

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 3.1): Network (remote) · Low 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

An unauthorized attacker could predict or hijack valid session identifiers. Vendor/CNA’s CVSS 3.1 assessment (base score 3.1/10) rates confidentiality impact as low; integrity and availability impact as none. NVD’s CVSS 3.1 assessment (base score 9.8/10) rates confidentiality, integrity and availability impact as high.

Published 15-Oct-2026 01:10 UTC

CWE: CWE-557
CCR priority: 39.2 /100 (P4)
CVSS 3.1: 9.8 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · NVD
EPSS: 0.00153 · percentile 0.03928 · 2026-10-13
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-15 01:07:31.726917+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-21806.html