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CVE Record

CVE-2018-11924: Improper buffer length validation in WLAN function can lead to a potential integer oveflow issue in Snapdra...

Improper buffer length validation in WLAN function can lead to a potential integer oveflow issue in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music in MDM9150, MDM9206, MDM9607, MDM9640, MDM9650, MSM8996AU, QCA6174A, QCA6574AU, QCA9377, QCA9379, QCS605, SD 210/SD 212/SD 205, SD 425, SD 427, SD 430, SD 435, SD 450, SD 625, SD 636, SD 675, SD 712 / SD 710 / SD 670, SD 820A, SD 835, SD 845 / SD 850, SD 855, SDA660, SDM630, SDM660, SDX20, SDX24, SM7150

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

CVE-2018-11924 is a Qualcomm Snapdragon WLAN flaw where poor length validation could cause an integer overflow. It affects many Snapdragon product lines and chipsets used in mobile, IoT, automotive, compute, and connectivity devices. Public source data does not provide CVSS, severity, confirmed exploitation, or detailed remediation steps.

Executive priority

Set priority to assessment and vendor follow-up rather than emergency response unless local exposure or vendor severity data raises risk. The broad chipset list creates inventory risk, but public evidence here lacks severity scoring, exploitation confirmation, and specific business impact details.

Technical view

The CVE describes improper buffer length validation in a WLAN function, potentially leading to integer overflow across listed Qualcomm Snapdragon platforms and chipsets. The available record does not name a CWE, attack prerequisites, impact class, patch version, or exploitability details beyond the affected Snapdragon families and the Code Aurora April 2019 bulletin reference.

Likely exposure

Exposure is most likely in products embedding the listed Qualcomm chipsets, especially devices with active WLAN functionality. Organizations should assess mobile fleets, embedded IoT, automotive, industrial, and consumer devices by hardware chipset and vendor firmware lineage, not just operating system version.

Exploitation context

The provided sources do not show CISA KEV listing, active exploitation, public exploit availability, or real-world incident reports. Treat exploitation status as unconfirmed. The WLAN component suggests exposure depends on device firmware, wireless functionality, and vendor integration details that are not provided in the source bundle.

Researcher notes

Key gaps are CVSS, CWE, exact vulnerable code path, fixed firmware versions, and exploitation prerequisites. Researchers should stay source-grounded, correlate affected chipsets with OEM firmware advisories, and avoid assuming exploitability across all devices merely because a chipset family is listed.

Mitigation direction

  • Identify assets using the affected Qualcomm Snapdragon chipsets.
  • Check Qualcomm, Code Aurora, OEM, and carrier advisories for firmware guidance.
  • Apply vendor-provided firmware or security updates when available.
  • Prioritize managed devices with active WLAN and unsupported firmware.
  • Escalate unsupported affected devices for replacement or compensating controls.

Validation and detection

  • Map device models to Qualcomm chipset or module identifiers.
  • Compare firmware patch levels against OEM and Qualcomm advisory references.
  • Review mobile, IoT, and embedded asset inventories for listed chipsets.
  • Confirm whether WLAN firmware comes from an affected Qualcomm branch.
  • Document unknown chipset status as unresolved exposure.
Prepared
Confidence
medium
Sources
3

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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.

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CVE-2018-11924 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

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.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Qualcomm, Inc.Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & MusicMDM9150, MDM9206, MDM9607, MDM9640, MDM9650, MSM8996AU, QCA6174A, QCA6574AU, QCA9377, QCA9379, QCS605, SD 210/SD 212/SD 205, SD 425, SD 427, SD 430, SD 435, SD 450, SD 625, SD 636, SD 675, SD 712 / SD 710 / SD 670, SD 820A, SD 835, SD 845 / SD 850, SD 855, SDA660, SDM630, SDM660, SDX20, SDX24, SM7150Listed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.