Security readout for executives and security teams
Plain-English summary
This vulnerability affects Bosch Access Professional Edition client installations. The sources describe unauthorized access to sensitive data through Windows SMB, potentially affecting confidentiality, integrity, and availability. The business concern is exposure of physical access control data or client system integrity where vulnerable APE clients are present.
Executive priority
Treat this as a high-priority exposure review for sites using Bosch APE. It concerns access control infrastructure and sensitive data, but the provided sources do not show active exploitation or a complete affected-version list.
Technical view
CVE-2019-11899 is a CWE-284 improper access control issue in Bosch Access Professional Edition, described for APE 3.8 client installations. The CVSS 3.0 score is 8.8 high, with network attack vector, low complexity, no user interaction, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is most likely where Bosch Access Professional Edition client installations exist and Windows SMB is reachable by untrusted or insufficiently trusted users. The source bundle does not define all affected versions beyond the APE 3.8 description.
Exploitation context
The bundle does not report known active exploitation, and CISA KEV status is false. Evidence is limited to public CVE data and Bosch advisory references. One inconsistency remains: the description says unauthenticated access, while the CVSS vector lists low privileges required.
Researcher notes
Focus validation on Bosch APE client installations, SMB exposure, and administrator authorization state. Do not assume exploitability beyond the cited description. Resolve the unauthenticated-versus-low-privilege CVSS discrepancy through the Bosch advisory or vendor support before final risk acceptance.
Mitigation direction
- Identify Bosch Access Professional Edition client installations, especially APE 3.8.
- Review the Bosch advisory for vendor-confirmed fixes or configuration requirements.
- Ensure APE client installations are authorized by an APE administrator.
- Restrict SMB reachability to trusted administrative networks where operationally possible.
- Prioritize remediation for access-control environments with sensitive physical security data.
Validation and detection
- Inventory systems running Bosch Access Professional Edition client components.
- Confirm whether any identified clients are APE 3.8 or vendor-listed affected versions.
- Verify APE administrator authorization status for client installations.
- Review network paths that can reach SMB services on APE client systems.
- Check vendor advisory status before claiming a system is fixed.
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-284: 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 lookupCVE-2019-11899 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
- High
- CVSS
- 8.8 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H2.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
8.8HighVector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://psirt.bosch.com/Advisory/BOSCH-SA-844044.htmlCVE reference · x_refsource_CONFIRM
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 Access Control
Improper Access Control represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.