Security readout for executives and security teams
Plain-English summary
This CVE describes a memory-safety flaw in Qualcomm Snapdragon-related platforms. A bad length check before copying data can overflow a calculation and then overflow a buffer. The bundle does not provide severity, CVSS, exploitability conditions, or evidence of active exploitation.
Executive priority
Make this a targeted vulnerability management item. The flaw could be serious because it involves buffer overflow behavior in widely used chip families, but the provided evidence does not justify an emergency active-exploitation response.
Technical view
The issue is an improper buffer length check in a Qualcomm WMA event handler. The described failure path is integer overflow followed by buffer overflow. Affected entries are chipset/platform identifiers across Snapdragon Auto, Compute, Consumer IoT, Industrial IoT, Mobile, MDM, QCA, QCS, SD, SDA, SDM, and SDX families.
Likely exposure
Exposure is likely limited to products using the listed Qualcomm chipsets and vulnerable OEM firmware. The source bundle does not map this CVE to specific phones, vehicles, IoT devices, operating systems, or firmware versions, so organizations need asset and vendor confirmation.
Exploitation context
The bundle marks CISA KEV as false and provides no cited evidence of active exploitation. It also lacks attack vector, privileges, user interaction, exploit maturity, and proof-of-concept details. Treat exploitation status as unconfirmed from the provided evidence.
Researcher notes
Key gaps are missing CVSS, CWE, exploitability requirements, fixed-version detail, and product-level mappings. Use the CVE record and the April 2019 Code Aurora bulletin as starting points, then rely on OEM firmware advisories for validation and remediation decisions.
Mitigation direction
- Identify assets using the listed Qualcomm Snapdragon, MDM, QCA, QCS, SDM, or SDX chipsets.
- Review Qualcomm, Code Aurora, and OEM advisories for product-specific remediation.
- Apply vendor-provided firmware or driver updates where available.
- Prioritize supported, internet-connected, automotive, industrial, and mobile fleet devices.
- Track unsupported affected products for replacement or compensating controls.
Validation and detection
- Inventory devices and modules against the affected chipset list.
- Confirm OEM firmware versions and security patch levels with vendor documentation.
- Check whether the Qualcomm WMA component is present in deployed firmware.
- Verify remediation status through OEM release notes or support confirmation.
- Document devices where exposure cannot be confirmed from available sources.
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-2018-11923 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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 and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://www.codeaurora.org/security-bulletin/2019/04/01/april-2019-code-aurora-security-bulletinCVE 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.