What is the CVSS score of CVE-2026-56538?

CVE-2026-56538 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: 0.2%.

HCL Connections CVE-2026-56538

EUVD-2026-49183 LOW

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

2026-07-27 HCL

GHSA-2ggm-9493-rh4g

Information Disclosure Connections Hclsoftware

3.5

CVSS 3.1 · Vendor: HCL

View

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

Access

Authenticate to HCL Connections
Exploit

Send crafted request to vulnerable endpoint
Execution

Application returns sensitive data due to improper handling
Impact

Attacker views confidential information

Vulnerability Assessment

Weakness	CWE CWE-213
Exploitation Conditions	The attacker must have an authenticated session with low privileges (PR:L) and the victim must perform a user interaction (UI:R) such as clicking a link or submitting a form. The vulnerability exists in HCL Connections 8.0 only; no special configuration or non-default settings are required. The requirement for user interaction limits realistic exploitation to social engineering scenarios.
Impact	CVSS 3.1 base score 3.5 (Low) with AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N. The SSVC framework categorizes exploitation as none, automatable as no, and technical impact as partial. No KEV listing or public exploit code exists. The combination of low severity, required privileges, and user interaction indicates this is a low-priority issue for most environments.
Exploit ScenarioDerived	An authenticated low-privilege user sends a crafted request to the vulnerable endpoint, causing the application to inadvertently display sensitive information. No public exploit code is available, but the attack requires user interaction and low privileges.

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

No patch listed yet 0.2% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAIv1 – Jul 28, 2026

Information disclosure vulnerability in HCL Connections 8.0 allows an authenticated low-privilege user to access sensitive data through a vulnerable endpoint, requiring user interaction. No public exploit or active exploitation has been identified, and the overall risk is low.

RemediationAI

Apply the official patch provided by HCL in support article KB0132507 (https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0132507). Upgrade to the patched version of HCL Connections 8.0. As a workaround, restrict access to the vulnerable endpoint through network segmentation or additional authentication controls, though the exact endpoint is not publicly specified.

Affected VersionsENISA

Connections 8.0

Affected Packages

euvd connections no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

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

Technical ContextAI · show details

HCL Connections is an enterprise social business platform. The vulnerability resides in a specific endpoint (likely a web interface or API) that fails to properly restrict sensitive information, aligning with CWE-213 (Exposure of Sensitive Information Due to Not Using Encryption). While the CWE suggests encryption issues, the CVSS vector indicates a broader information leak requiring user interaction.

Know when Connections gets its next vulnerability

Watch products and get an email when something new is published
Check this CVE against your own stack and servers
Exploit and PoC references, threat intelligence from 22 sources

Continue with Google Continue with GitHub

No credit card · 7-day full trial

Severity by source

Vendor (HCL) PRIMARY 3.5 LOW

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

vuln.today AI 3.5 LOW

Requires low privileges and user interaction; no integrity/availability impact.

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

4.0 AV:N/AC:L/AT:N/PR:L/UI:R/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (HCL).

CVSS VectorVendor: HCL

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

DescriptionCVE.org

An endpoint in HCL Connections is vulnerable to information disclosure. In certain scenarios this might lead to disclosing sensitive information to unauthorized users.

Threat Intelligence Overview

EPSS Score

0.2%

Top 95% exploitable

Prevalence

Medium

Enterprise social platform, moderate adoption

Data Quality

6 sources

Confidence: High

EUVD

NVD

CVE.org

EPSS

Vulnrichment

VulDB

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 0.2%

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

None

System Exposure· derived

Open

Automatable

Human Impact· derived

Low

Technical Impact

Partial

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.