Security readout for executives and security teams
Plain-English summary
This issue affects HCL BigFix Console installer packages built with a vulnerable InstallShield version. A local user could potentially gain elevated privileges if the vulnerable installer is present and used. It is not described as a remote internet-facing compromise.
Executive priority
Treat as a planned remediation item for endpoint and IT operations environments. Prioritize faster if BigFix administrator workstations are shared, broadly accessible, or retain old installer packages.
Technical view
CVE-2021-27767 maps to a privilege escalation in the BigFix Console installer due to InstallShield CVE-2021-41526. CVSS indicates local access, low complexity, low privileges, required user interaction, changed scope, high confidentiality impact, low integrity impact, and no availability impact.
Likely exposure
Organizations using HCL BigFix Platform Console versions 9.5 through 9.5.18 or 10 through 10.0.5, especially where vulnerable installer packages remain available on endpoints, shares, or admin workstations.
Exploitation context
The bundle does not show CISA KEV listing or cited evidence of active exploitation. Exploitation requires local access and user interaction, limiting broad remote attack likelihood but still relevant on shared systems.
Researcher notes
Evidence ties this CVE to InstallShield CVE-2021-41526 in BigFix Console installers. The provided bundle does not include exploit procedure, observed exploitation, or detailed compensating controls beyond updating the installer component.
Mitigation direction
- Review HCL advisory KB0098116 for the fixed BigFix Console installer guidance.
- Upgrade affected BigFix Platform Console versions outside the listed vulnerable ranges.
- Remove or replace retained vulnerable installer packages from shares and endpoint caches.
- Restrict local access to systems where BigFix Console installers are stored or executed.
Validation and detection
- Inventory BigFix Platform Console versions across endpoints and administrator workstations.
- Confirm no systems use versions 9.5 through 9.5.18 or 10 through 10.0.5.
- Search software repositories and file shares for old BigFix Console installers.
- Verify remediation status against HCL KB0098116 and internal asset records.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-269: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupPrivilege behavior lookup
The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-27767 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.7 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N1.54.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.7MediumVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0098116CVE reference · x_refsource_MISC
- https://github.com/mandiant/Vulnerability-Disclosures/blob/master/2022/MNDT-2022-0025/MNDT-2022-0025.mdCVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Privilege Management
Improper Privilege Management represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.