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CVE Record

CVE-2018-5886: A pointer in an ADSPRPC command is not properly validated in all Android releases from CAF using the Linux...

A pointer in an ADSPRPC command is not properly validated in all Android releases from CAF using the Linux kernel (Android for MSM, Firefox OS for MSM, QRD Android), which can lead to kernel memory being accessed.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

This issue affects Qualcomm CAF-based Android kernels. An ADSPRPC command can accept a pointer that is not properly checked, allowing kernel memory to be accessed. Sources do not provide CVSS, exploitation evidence, or OEM patch status, so urgency depends on whether affected CAF-derived firmware is deployed.

Executive priority

Prioritize as an exposure-mapping and firmware hygiene item, not as confirmed emergency exploitation. Devices using Qualcomm CAF Android kernels should be checked, because kernel memory access issues can become serious when reachable on unsupported or unpatched mobile devices.

Technical view

CVE-2018-5886 is an improper pointer validation flaw in ADSPRPC handling in Android releases from CAF using the Linux kernel, including Android for MSM, Firefox OS for MSM, and QRD Android. The reported impact is access to kernel memory. The bundle references a July 2018 Code Aurora bulletin and an msm-3.18 kernel commit.

Likely exposure

Likely exposure is limited to devices or products using Qualcomm CAF Linux-kernel Android releases or downstream OEM firmware derived from them. Standard enterprise servers are not indicated. Asset owners should map Qualcomm Android device models, kernel branches, and vendor firmware patch levels before assuming exposure.

Exploitation context

The supplied sources do not show active exploitation, public exploit availability, or CISA KEV listing. The issue is kernel-adjacent, but the bundle does not describe attack prerequisites, required privileges, or reachable interfaces. Treat exploitation context as incomplete.

Researcher notes

Evidence is sparse: no CVSS, CWE, exploit details, or explicit patch statement are included in the bundle. The best technical anchor is the referenced CAF msm-3.18 commit. Avoid broad Android conclusions without confirming the device kernel lineage and OEM backports.

Mitigation direction

  • Check Qualcomm, Code Aurora, and OEM advisories for patched firmware.
  • Prioritize updates for Qualcomm CAF-derived Android devices in managed fleets.
  • Review the referenced msm-3.18 commit for patch lineage.
  • Retire or isolate devices without vendor security update support.

Validation and detection

  • Inventory Android devices using Qualcomm MSM or CAF-derived firmware.
  • Compare installed firmware dates against July 2018 vendor security guidance.
  • Confirm whether ADSPRPC-related kernel fixes are present in device source releases.
  • Track OEM bulletins for model-specific patch availability and build numbers.
Prepared
Confidence
medium
Sources
4

Public sources used

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.

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CVE-2018-5886 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
3Source links

CVSS and timeline data

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

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Qualcomm, Inc.Android for MSM, Firefox OS for MSM, QRD AndroidAll Android releases from CAF using the Linux kernelListed
Weakness

CWE details

No CWE listed

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