What is the CVSS score of CVE-2025-52603?

CVE-2025-52603 has a CVSS 3.1 base score of 3.5 (Low). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N. EPSS exploitation probability: 0.0%.

How to fix or mitigate CVE-2025-52603?

During next maintenance window: Apply vendor patches when convenient. Monitor vendor channels for updates.

Connections CVE-2025-52603

LOW

Exposure of Sensitive Information Due to Incompatible Policies (CWE-213)

2026-02-20 psirt@hcl.com

Information Disclosure Connections Hcltech

3.5

CVSS 3.1 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-213 OWASP Top 10:2025 A06:2021 - Vulnerable and Outdated Components ASVS 5.0 V14 - Configuration Dependency management, component inventory
Impact	CVSS 3.5 (LOW). Attack vector: Network. Complexity: Low. Privileges required: Low. User interaction: Required.
Exploit ScenarioDerived	An attacker could exploit this vulnerability to obtain limited information when a single piece of internal metadata is returned.

Monitor Track and reassess. Why: LOW severity (CVSS 0.1-3.9).

No patch listed yet 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

Connections versions up to 7.0 contains a vulnerability that allows attackers to obtain limited information when a single piece of internal metadata is returned (CVSS 3.5).

RemediationAI

Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

affects Connections. HCL Connections is vulnerable to information disclosure. In a very specific user navigation scenario, this could allow a user to obtain limited information when a single piece of internal metadata is returned in the browser.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 3.5 LOW

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

DescriptionCVE.org

HCL Connections is vulnerable to information disclosure. In a very specific user navigation scenario, this could allow a user to obtain limited information when a single piece of internal metadata is returned in the browser.

Executive ViewAI

Why It Matters

CVE-2025-52603 is a low-severity vulnerability in HCL Connections (CVSS 3.5). The limited severity suggests constrained impact, typically requiring specific conditions or local access for exploitation. Apply vendor updates when available as part of routine maintenance.

Business Impact: Low

Compensating Controls

Apply vendor patch during routine maintenance. Standard security controls provide adequate interim protection.

Threat Intelligence Overview

EPSS Score

0.0%

Top 92% exploitable

Data Quality

3 sources

Confidence: Low

NVD

CVE.org

EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity LOW

CISA KEV No

Public POC No

EPSS 0.0%

Patch available No

Active threat No

Deciding rule

LOW severity (CVSS 0.1-3.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Defer

Exploitation· derived

None

System Exposure· derived

Open

Automatable· derived

Human Impact

Low

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +18

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Affected Products (CPE)CVE.org

cpe:2.3:a:hcltech:connections:7.0:*:*:*:*:*:*:*

cpe:2.3:a:hcltech:connections:8.0:-:*:*:*:*:*:*

cpe:2.3:a:hcltech:connections:8.0:cumulative_release1:*:*:*:*:*:*

cpe:2.3:a:hcltech:connections:8.0:cumulative_release10:*:*:*:*:*:*

cpe:2.3:a:hcltech:connections:8.0:cumulative_release2:*:*:*:*:*:*

cpe:2.3:a:hcltech:connections:8.0:cumulative_release3:*:*:*:*:*:*

cpe:2.3:a:hcltech:connections:8.0:cumulative_release4:*:*:*:*:*:*

cpe:2.3:a:hcltech:connections:8.0:cumulative_release5:*:*:*:*:*:*

cpe:2.3:a:hcltech:connections:8.0:cumulative_release6:*:*:*:*:*:*

cpe:2.3:a:hcltech:connections:8.0:cumulative_release7:*:*:*:*:*:*

cpe:2.3:a:hcltech:connections:8.0:cumulative_release8:*:*:*:*:*:*

cpe:2.3:a:hcltech:connections:8.0:cumulative_release9:*:*:*:*:*:*

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References

Advisories & patches

ADVISORY https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0124242

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GitHub PoC

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