Improper input validation in HCL BigFix Service Management
Key facts
- Attack vector
- Adjacent network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
HCL BigFix Service Management from Version 27 is affected by an improper input validation flaw (CWE-20). Malformed or unexpected input is not validated properly, which lets an attacker cause processing errors, bypass business logic and trigger unintended application behavior. An attacker on an adjacent network with low privileges can exploit it without user interaction, with limited integrity impact.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
HCL BigFix Service Management is affected by an Improper Input Validation vulnerability, which could allow an attacker to supply unexpected or malformed data, enabling processing errors, business logic bypasses, and unintended application behavior.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| HCL Software | HCL BigFix Service Management | Version 27 | — | No fix listed | CNA |
- HCL BigFix Service Management VendorHCL Software Affected Version 27 Fixed in — No fix listed CNA
CPE names Threatist (inferred) · 1
Inferred from how NVD named this product before; not given by a source.
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:hcltech:bigfix_service_management:*:*:*:*:*:*:*:* | — | — | HCL Software |
- cpe:2.3:a:hcltech:bigfix_service_management:*:*:*:*:*:*:*:* Versions — — ·HCL Software
Remediation
The sources list no fixed version for HCL BigFix Service Management.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Timeline
- 2026-10-06 Threatist record created from CVE-2026-56596
- 2026-10-06 Alias added: GHSA-4wg9-7x2v-7wxf
More HCL Software vulnerabilities
- TI-2023-24505 Path Traversal which allows file upload capability affects DRYiCE MyXalytics CVSS 3.1CRITICAL 9.8
- TI-2022-22044 Out-of-bounds write in HCL Software Notes CVSS 3.1CRITICAL 9.8
- TI-2022-22043 Out-of-bounds write in HCL Software Domino CVSS 3.1CRITICAL 9.8
- TI-2022-22042 Out-of-bounds write in HCL Software Notes CVSS 3.1CRITICAL 9.8
- TI-2022-22041 Out-of-bounds write in HCL Software Domino CVSS 3.1CRITICAL 9.8
- TI-2022-22040 Out-of-bounds write in HCL Software Notes CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-56596 · CVE Program
- CVE-2026-56596 · NVD
- FIRST EPSS
- GHSA-4wg9-7x2v-7wxf · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences