Security readout for executives and security teams
Plain-English summary
This CVE affects the ALEOS ACEView Service before listed fixed release lines. The service is accessible by default on the LAN, so business risk is mainly from internal networks or exposed management segments rather than the public internet. The published severity is low, and the source bundle does not show active exploitation.
Executive priority
Treat as a low-priority hygiene item unless ACEView Service is reachable from broad internal networks, third-party networks, or exposed management paths. Remediate during normal maintenance windows.
Technical view
An out-of-bounds read exists in ALEOS ACEView Service before 4.13.0, 4.9.5, and 4.4.9. The CVSS 3.1 vector is AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L, score 3.7. The description also states sensitive information may be disclosed through ACEView Service on the LAN.
Likely exposure
Organizations running ALEOS versions earlier than 4.13.0, 4.9.5, or 4.4.9 with ACEView Service reachable on LAN segments are the likely exposure set.
Exploitation context
The source bundle and KEV status do not support active exploitation claims. Attack complexity is rated high, no privileges or user interaction are required, and default LAN reachability is the key exposure condition.
Researcher notes
Evidence is limited to the CVE record and Sierra Wireless bulletin reference. The record’s description mentions sensitive information disclosure, while the CVSS vector shows no confidentiality impact and low availability impact; preserve that discrepancy in reporting.
Mitigation direction
- Review the Sierra Wireless technical bulletin for official guidance.
- Upgrade ALEOS to a non-affected release where applicable.
- Restrict ACEView Service to trusted management networks only.
- Remove unintended LAN reachability to ACEView Service.
Validation and detection
- Inventory ALEOS versions across managed devices.
- Compare deployed versions against 4.13.0, 4.9.5, and 4.4.9 thresholds.
- Confirm whether ACEView Service is enabled and LAN-reachable.
- Verify network controls limit access to trusted administrators.
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-2019-11852 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
- Low
- CVSS
- 3.7 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
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:H/PR:N/UI:N/S:U/C:N/I:N/A:L2.21.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
3.7LowVector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
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.