SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityDeferred

CVE-2025-31979

A File Upload Validation Bypass vulnerability has been identified in the HCL BigFix SM, where the application fails to properly enforce file type restrictions during the upload process.

MEDIUM 5.4EPSS 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

A File Upload Validation Bypass vulnerability has been identified in the HCL BigFix SM, where the application fails to properly enforce file type restrictions during the upload process. An attacker may exploit this flaw to upload malicious or unauthorized files, such as scripts, executables, or web shells, by bypassing client-side or server-side validation mechanisms.

CVSS 3.1
5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
EPSS
0.21% probability · 11th percentile
CISA KEV
Not listed
Weakness
CWE-434
Source
psirt@hcl.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.