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CVE Record

CVE-2018-14745: Buffer overflow in prot_get_ring_space in the bcmdhd4358 Wi-Fi driver on the Samsung Galaxy S6 SM-G920F G92...

Buffer overflow in prot_get_ring_space in the bcmdhd4358 Wi-Fi driver on the Samsung Galaxy S6 SM-G920F G920FXXU5EQH7 allows an attacker (who has obtained code execution on the Wi-Fi chip) to overwrite kernel memory due to improper validation of the ring buffer read pointer. The Samsung ID is SVE-2018-12029.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2018-14745 is a Samsung Galaxy S6 Wi-Fi driver flaw that could let a compromised Wi-Fi chip overwrite Android kernel memory. The issue is serious in impact, but the cited CVE description requires the attacker to already have code execution on the Wi-Fi chip.

Executive priority

Prioritize if legacy Samsung Galaxy S6 devices still access sensitive networks or data. The business risk is highest where unsupported phones remain in production, because a Wi-Fi-chip compromise could become a kernel-level device compromise.

Technical view

The flaw is a buffer overflow in prot_get_ring_space in the bcmdhd4358 Wi-Fi driver on Samsung Galaxy S6 SM-G920F build G920FXXU5EQH7. Improper validation of a ring buffer read pointer can allow kernel memory overwrite from the Wi-Fi chip context.

Likely exposure

Exposure appears limited to the specifically cited Samsung Galaxy S6 SM-G920F firmware/build and related Samsung advisory ID SVE-2018-12029. The source bundle does not provide broader affected-version data, CVSS scoring, or CPE coverage.

Exploitation context

No KEV listing is cited, and the bundle does not show public active exploitation. The CVE description states exploitation requires prior code execution on the Wi-Fi chip, making this more likely as a chained post-compromise issue than a standalone remote entry point.

Researcher notes

Evidence is narrow and incomplete: no CVSS, CPEs, CWE mapping, or detailed vendor fix data are included. The key technical precondition is attacker-controlled Wi-Fi chip execution before abusing ring-buffer pointer validation in the host driver.

Mitigation direction

  • Check Samsung guidance for SVE-2018-12029 and applicable Galaxy S6 updates.
  • Apply vendor security updates where available for affected Samsung firmware.
  • Retire or isolate unsupported Galaxy S6 devices from sensitive environments.
  • Treat Wi-Fi chip compromise indicators as potential Android kernel risk.
  • Avoid assuming coverage beyond the exact affected model/build cited.

Validation and detection

  • Inventory Samsung Galaxy S6 SM-G920F devices and firmware build G920FXXU5EQH7.
  • Map device patch level against Samsung SVE-2018-12029 guidance.
  • Confirm whether bcmdhd4358 Wi-Fi driver is present on managed devices.
  • Review EDR or mobile telemetry for suspicious Wi-Fi subsystem behavior.
  • Document unsupported devices requiring retirement or compensating controls.
Prepared
Confidence
medium
Sources
5

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

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ATT&CK lookup starting points

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Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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CVE-2018-14745 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
4Source 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
n/an/an/aListed
Weakness

CWE details

No CWE listed

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