CVE-2026-56538

Q: How do I fix CVE-2026-56538?

Upgrade connections to 8.0 or later.

Q: Is CVE-2026-56538 being actively exploited?

Not that we know of. CVE-2026-56538 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.16% is the estimated probability that it will be exploited in the next 30 days. That is higher than 5% of all scored CVEs.

Q: How severe is CVE-2026-56538?

CVE-2026-56538 has a CVSS v3 base score of 3.5, rated low. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

Q: What does CVE-2026-56538 affect?

Published advisories record a fix for connections (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

LOW

3.5

CVSS v3

NVD

Description

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

CWE-213

How to fix

Remediation Available

connectionsNVD

Affected:< 8.0Fixed in:8.0CVE-2026-56538derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

0.16%probability of exploitation in 30 days

5thpercentile

Low risk: more likely to be exploited than 5% of all known CVEs.

References

Patch1

support.hcl-software.com

Related Vulnerabilities

Other CWE-213 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2019-10247	Medium	5.3	5.8%	-	Fix
CVE-2019-10246	Medium	5.3	4.0%	-	-
CVE-2019-1010283	High	7.5	1.4%	-	-
CVE-2025-54831	Medium	6.5	0.9%	-	-
CVE-2017-3211	Medium	5.3	0.8%	-	-
CVE-2022-22541	Medium	6.5	0.8%	-	-

Common questions

How do I fix CVE-2026-56538?

Upgrade connections to 8.0 or later.

Is CVE-2026-56538 being actively exploited?

Not that we know of. CVE-2026-56538 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.16% is the estimated probability that it will be exploited in the next 30 days. That is higher than 5% of all scored CVEs.

How severe is CVE-2026-56538?

CVE-2026-56538 has a CVSS v3 base score of 3.5, rated low. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2026-56538 affect?

Published advisories record a fix for connections (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

Embed a live status badge for CVE-2026-56538

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-08-20.