Security readout for executives and security teams
Plain-English summary
CVE-2019-11857 is a critical ALEOS AceManager issue where poor input sanitization can expose sensitive system information. The source bundle names affected ALEOS versions before 4.12.0, 4.9.5, and 4.4.9. It needs prompt attention where AceManager is reachable, but the bundle does not show active exploitation.
Executive priority
Treat this as high-priority for any environment with ALEOS AceManager in use, especially if management interfaces are network-reachable. The urgency comes from critical CVSS impact and sensitive information exposure, tempered by the lack of confirmed exploitation in the provided sources.
Technical view
The CVE describes lack of input sanitization in ALEOS AceManager causing sensitive system information disclosure. CVSS 3.1 is 9.1 with network attack vector, low complexity, no user interaction, changed scope, and high privilege requirement. The source bundle provides no CWE, no proof-of-concept detail, and no affected CPE list.
Likely exposure
Exposure is most likely in organizations running ALEOS AceManager versions older than 4.12.0, 4.9.5, or 4.4.9. The bundle does not identify specific hardware models or CPEs, so asset owners must map ALEOS versions from their own inventories.
Exploitation context
The bundle says this is not in KEV and provides no evidence of active exploitation. The CVSS vector indicates network reachability and high privileges are required, with no user interaction. Public source details in the bundle are too limited to assess exploit availability.
Researcher notes
Key gaps are affected product mapping, CWE classification, and technical trigger details. The CVSS vector’s high privilege requirement matters for triage. Do not assume unauthenticated exploitation from the provided evidence; validate version exposure and management-plane accessibility first.
Mitigation direction
- Inventory ALEOS AceManager deployments and record exact ALEOS versions.
- Upgrade affected ALEOS branches to 4.12.0, 4.9.5, 4.4.9, or later where applicable.
- Review the Sierra Wireless technical bulletin for vendor-specific remediation guidance.
- Restrict AceManager management access to trusted administrative networks.
- Review administrator account exposure and remove unnecessary privileged access.
Validation and detection
- Confirm no ALEOS AceManager instance runs below the fixed versions named in the CVE.
- Verify management interfaces are not exposed beyond intended administrative networks.
- Check change records for successful ALEOS upgrades on affected assets.
- Review logs for unusual privileged AceManager access, within available telemetry.
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.
CVE-2019-11857 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
- Critical
- CVSS
- 9.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/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:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H2.36Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.1CriticalVector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://source.sierrawireless.com/resources/security-bulletins/sierra-wireless-technical-bulletin---swi-psa-2020-004/CVE 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.