What’s Vulnerable › Vulnerabilities

CVE-2021-27780: HCL BigFix Mobile / Modern Client Management is vulnerable to unauthenticated XML interaction

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-05-27 · updated 2026-06-17
• Weakness: CWE-112

Description

The software may be vulnerable to both Un-Auth XML interaction and unauthenticated device enrollment.

Affected products

• HCL Software BigFix Mobile: from 1.0 before 2.1 — fixed in 2.1
• Hcltech Modern Client Management: from 1.0 before 2.1 — fixed in 2.1

How to fix

Upgrade to a fixed version: HCL Software BigFix Mobile 2.1; Hcltech Modern Client Management 2.1. Check the vendor advisory for mitigations.

References

• https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0098028
• https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0098028

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