CVE-2025-0274· NVD / CVE Program· CNA HCL

HCL BigFix Modern Client Management (MCM) 3.3 and earlier is affected by improper access control

Noroxi assessment

Priority: Monitor (action score 17/100)

The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
Probability of exploitation in the next 30 days: 0.26% (FIRST EPSS).
Anyone who can reach it over the internet can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
According to CISA the attack is automatable: targets can be found by mass scanning.
According to the record, no fixed version is available yet.

Low priority for now. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

HCL BigFix Modern Client Management (MCM) 3.3 and earlier is affected by improper access control. Unauthorized users can access a small subset of endpoint actions, potentially allowing access to select internal functions.

MediumCVSS 4.3 · v3.1—No exploit No fix recorded

Auth bypass

Published: Oct 16, 2025
Updated: Oct 8, 2026
EPSS: 0.2% · 17th percentile
CWE: CWE-306

Report tools

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Action score

Monitor

Low priority for now.

CVSS: 17 / 40 · 4.3 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.2%

CISA SSVC decision

Exploitation: none
Automatable: yes
Technical impact: partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: 4.3
CNA · HCL: 5.3; 1.0 point gap

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

Not in KEV: no record of exploitation in the wild
No public exploit code on record
No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
hcltech	bigfix mobile	cpe:2.3:a:hcltech:bigfix_mobile
hcltech	bigfix modern client management	cpe:2.3:a:hcltech:bigfix_modern_client_management

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

hcltech bigfix mobileup to 3.3 inclusive
hcltech bigfix modern client managementbefore 3.4

Versions reported by the vendor

Affected version ranges reported by the assigning authority (HCL). Independent of NVD's CPE analysis and usually ahead of it.

HCL Software BigFix Modern Client Management
- <=3.3affected

Same product

hcltech: all records

Other highest-scoring records for the same primary product.

CVE-2023-28012HCL BigFix Mobile can be affected by a command injection vulnerability
35Monitor
CVE-2021-27782HCL BigFix Mobile / Modern Client Management Server passwords are susceptible to a brute-force attack
30Monitor
CVE-2021-27783HCL BigFix Mobile / Modern Client Management is vulnerable to sensitive information exposure
26Monitor

Published before and after this one in the same product

← EarlierCVE-2021-27781May 27, 2022 · HCL BigFix Mobile / Modern Client Management is vulnerable to stored cross-site scripting
19Monitor
← EarlierCVE-2023-28014Jul 26, 2023 · HCL BigFix Mobile can be affected by a cross-site scripting (XSS) vulnerability
21Monitor
Later →CVE-2025-0275Oct 16, 2025 · HCL BigFix Mobile 3.3 and earlier is affected by improper access control
17Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

CVE-2025-02750 days apartHCL BigFix Mobile 3.3 and earlier is affected by improper access control
17Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

Anyone who can reach it over the internet can trigger it.
A low-privileged account is enough.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality: low · data can be read
Integrity: none
Availability: none

Attack vector: Network
Attack complexity: Low
Privileges required: Low
User interaction: None
Scope: Unchanged
Confidentiality impact: Low
Integrity impact: None
Availability impact: None

Weakness class (CWE)

CWE-306 · Missing Authentication for Critical Function

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

nvd-primary

Root cause

A function added for development or support ships to production without authentication. It often relies on the assumption that it is “only reachable from the internal network.”

The bug in code

The whole CWE-306 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1// Added for the support team
2app.post("/maintenance/reset", resetDevice);

Fixed

1if (config.maintenanceEnabled) {
2  app.post(
3    "/maintenance/reset",
4    requireSession, requireRole("admin"), resetDevice
5  );
6}

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

ATT&CK techniques

—

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0124512

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records