CVE-2025-31981 | HCL BigFix Service Management (SM) Discovery is vulnerable to unenforced encryption

HCL BigFix Service Management (SM) Discovery is vulnerable to unenforced encryption due to port 80 (HTTP) being open, allowing unencrypted access.  An attacker with access to the network traffic can sniff packets from the connection and uncover the data.

Published: 2026-04-21 Last update: 2026-04-22 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-31981 is rated Low Risk (21.4/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.09%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-31981

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.01% 0.09% +0.08%
2 2026-04-22 — 0.01% —

Full EPSS history (2 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-31981

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 1.4 [email protected]

Weakness enumeration for CVE-2025-31981

GitHub Security Advisory for CVE-2025-31981

GHSA-p537-crxv-22q7 · Severity: medium — HCL BigFix Service Management (SM) Discovery is vulnerable to unenforced encryption due to port...

Affected software / configurations for CVE-2025-31981

Vendor Product Version Raw CPE
hcltech bigfix_service_management 23.0 cpe:2.3:a:hcltech:bigfix_service_management:23.0:*:*:*:*:*:*:*

References for CVE-2025-31981

cvelogic Threat Intelligence