CVE-2021-27783Network attack vector

Sensitive data exposure via unencrypted PPKG generation

Published May 25, 2022 · Updated Sep 16, 2024

Missing encryption in HCL BigFix Mobile and Modern Client Management 2.0 and 2.1 allows remote authenticated users to read sensitive PPKG data. The Bulk Enroll package-generation workflow writes sensitive enrollment information into a user-generated Windows provisioning package without encrypting it. Exploitation requires low-privileged network access and user interaction with the generated file; HCL does not identify the exposed fields.

CVSS severity6.8
Medium
EPSS probability0.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing encryption in HCL BigFix Mobile and Modern Client Management 2.0 and 2.1 allows remote authenticated users to read sensitive PPKG data. The Bulk Enroll package-generation workflow writes sensitive enrollment information into a user-generated Windows provisioning package without encrypting it. Exploitation requires low-privileged network access and user interaction with the generated file; HCL does not identify the exposed fields.

The record

CVE
CVE-2021-27783
Published
May 25, 2022
Updated
Sep 16, 2024
Vendor
HCL Software
Product
BigFix Mobile and Modern Client Management
Classifications
CWE-311
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 25, 2022CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.0, 2.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

HCL Software · BigFix Mobile and Modern Client Managementversion=2.0, 2.1

Published CVSS scores

4.0NIST NVDAV:N/AC:L/Au:S/C:P/I:N/A:N
6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
6.8HCL SoftwareCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-311Missing Encryption of Sensitive Data

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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