SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAwaiting Analysis

CVE-2026-56596

HCL BigFix Service Management is affected by an Improper Input Validation vulnerability, which could allow an attacker to supply unexpected or malformed data, enabling processing errors, business logic bypasses, and unintended application behavior.

LOW 3.5EPSS 0.21%

Does this matter?

Lower severity and a low EPSS score (0.21%). Track it; it rarely justifies an emergency change on its own.

Description

HCL BigFix Service Management is affected by an Improper Input Validation vulnerability, which could allow an attacker to supply unexpected or malformed data, enabling processing errors, business logic bypasses, and unintended application behavior.

CVSS 3.1
3.5 LOWCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
EPSS
0.21% probability · 11th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-20
Source
psirt@hcl.com
EPSS trend
0%3%5%7 October 2026: 0.21%26 October 2026: 0.21%7 October 202626 October 2026

EPSS moved from 0.2% on 7 October 2026 to 0.2% on 26 October 2026.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.