What is CVE-2025-31979?

CVE-2025-31979 is a medium-severity vulnerability in Hcl Software Bigfix Service Management (Sm), classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 5.4/10. Published 2025-08-28.

How severe is CVE-2025-31979?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Is CVE-2025-31979 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Arbitrary file upload in Hcl Software Bigfix Service Management (Sm)

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. 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.

Vulnerability class: Unrestricted File Upload

EPSS: 0.002 (11.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.

Affected products

Hcl Software Bigfix Service Management (Sm) — versions 23

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

psirt@hcl.com

Frequently asked questions

What is CVE-2025-31979?: CVE-2025-31979 is a medium-severity vulnerability in Hcl Software Bigfix Service Management (Sm), classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 5.4/10. Published 2025-08-28.
How severe is CVE-2025-31979?: Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2025-31979 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.