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CVE Record

CVE-2018-5858: In the audio debugfs in all Android releases from CAF using the Linux kernel (Android for MSM, Firefox OS f...

In the audio debugfs in all Android releases from CAF using the Linux kernel (Android for MSM, Firefox OS for MSM, QRD Android) before security patch level 2018-07-05, out of bounds access can occur.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

CVE-2018-5858 is an out-of-bounds access issue in Qualcomm CAF-derived Android audio debugfs code. The bundle identifies affected Android for MSM, Firefox OS for MSM, and QRD Android releases before the 2018-07-05 security patch level. Public severity and exploitation evidence are not provided here.

Executive priority

Treat this as a legacy mobile platform hygiene issue unless your fleet includes unpatched Qualcomm CAF-derived devices. Prioritize inventory and firmware verification over emergency response, because the bundle provides no severity score or active exploitation evidence.

Technical view

The issue is in audio debugfs for Android releases from CAF using the Linux kernel. The public description states out-of-bounds access can occur before security patch level 2018-07-05. The provided references include Qualcomm/CodeAurora bulletin material, Android Pixel bulletin context, and related source commits, but no CVSS, CWE, or exploit details.

Likely exposure

Exposure is most likely in legacy Qualcomm MSM/CAF-based Android or derivative device images that did not receive the 2018-07-05 security patch level or equivalent vendor firmware update. Standard upstream Android or non-Qualcomm kernel builds are not identified as affected in the provided bundle.

Exploitation context

The bundle does not show active exploitation. CISA KEV status is false, and no cited source in the bundle claims exploitation in the wild. Because the issue is in debugfs-related kernel audio code, practical exploitability depends on device build, permissions, debugfs exposure, and vendor integration details not provided here.

Researcher notes

Key gaps are CVSS, CWE, privilege requirements, affected kernel branches beyond the named CAF releases, and whether debugfs must be accessible. Avoid assuming impact beyond out-of-bounds access unless vendor commits or advisories provide more detail.

Mitigation direction

  • Update affected devices to Android security patch level 2018-07-05 or later.
  • Apply vendor firmware containing the referenced Qualcomm CAF fixes.
  • Check Qualcomm, OEM, or carrier guidance for model-specific remediation.
  • Retire unsupported CAF-derived device images that cannot receive security updates.

Validation and detection

  • Inventory devices running Qualcomm MSM, CAF-derived Android, QRD Android, or Firefox OS for MSM.
  • Verify each device reports patch level 2018-07-05 or later.
  • Confirm vendor kernel source or firmware includes the referenced CAF commits.
  • Flag unsupported or custom images where patch provenance cannot be proven.
Prepared
Confidence
medium
Sources
6

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-2018-5858 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
5Source 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.