How severe is CVE-2026-56589?

CVE-2026-56589 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2026-56589 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-56589?

CVE-2026-56589 affects Hcltech Bigfix Service Management. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-56589?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2026-56589 published?

CVE-2026-56589 was published on 2026-10-01 and last updated on 2026-10-05.

CVE-2026-56589

CVE-2026-56589 is a high-severity vulnerability in Hcltech Bigfix Service Management with a CVSS 3.x base score of 7.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: High (CVSS 3.x base score 7.2)
EPSS exploit prediction: 0% (9th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Hcltech Bigfix Service Management
Published: 2026-10-01
Last modified: 2026-10-05

Description

HCL BigFix Service Management is affected by a Stored Cross-Site Scripting (XSS) vulnerability, which could allow an attacker to inject and store malicious scripts within the application that execute when a victim views the affected page, enabling session hijacking and the theft of sensitive data.

Frequently asked questions

What is CVE-2026-56589?: HCL BigFix Service Management is affected by a Stored Cross-Site Scripting (XSS) vulnerability, which could allow an attacker to inject and store malicious scripts within the application that execute when a victim views the affected page, enabling session hijacking and the theft of sensitive data.
How severe is CVE-2026-56589?: CVE-2026-56589 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2026-56589 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-56589?: CVE-2026-56589 affects Hcltech Bigfix Service Management. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-56589?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2026-56589 published?: CVE-2026-56589 was published on 2026-10-01 and last updated on 2026-10-05.

References

https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0134015

Affected products (1)

cpe:2.3:a:hcltech:bigfix_service_management:27:-:*:*:*:*:*:*

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