Security readout for executives and security teams
Plain-English summary
CVE-2018-5862 is a Qualcomm CAF Android WLAN driver issue where malformed vendor scan attributes could cause a buffer overwrite. It affects CAF-based Android releases before the 2018-07-05 security patch level. Business urgency depends on whether legacy Qualcomm Android builds remain in use or supported in products.
Executive priority
Prioritize if the organization manages legacy Qualcomm Android devices, embedded Android products, or custom CAF builds. For current fully patched devices, residual urgency appears lower based on the supplied evidence.
Technical view
The issue is in __wlan_hdd_cfg80211_vendor_scan(), parsing SCAN_SSIDS and QCA_WLAN_VENDOR_ATTR_SCAN_FREQUENCIES in Qualcomm WLAN code. The public record describes a potential buffer overwrite, but provides no CVSS, CWE, exploitation status, or detailed impact in the supplied sources.
Likely exposure
Exposure is most likely in older Android for MSM, Firefox OS for MSM, or QRD Android builds from CAF using Qualcomm Linux kernel WLAN components before 2018-07-05.
Exploitation context
The source bundle does not show active exploitation, and KEV is false. It also does not describe attacker proximity, privileges, or practical exploitability, so exploitation context remains incomplete.
Researcher notes
Key unknowns are impact, reachable attack surface, required privileges, and exploit reliability. Focus validation on whether vendor scan parsing code from affected CAF WLAN branches remains present in deployed kernels.
Mitigation direction
- Update affected CAF-based Android builds to security patch level 2018-07-05 or later.
- Confirm the referenced Qualcomm WLAN commit is included in maintained branches.
- Check OEM or Qualcomm guidance for device-specific patch availability.
- Retire unsupported devices that cannot receive the July 2018 Android security fixes.
Validation and detection
- Inventory Android products using Qualcomm CAF WLAN kernel components.
- Verify device security patch level is 2018-07-05 or later.
- Review kernel WLAN source for the referenced qcacld-3.0 commit.
- Confirm vendor firmware images include the fixed WLAN driver code.
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-2018-5862 mapping review
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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/2018/07/02/july-2018-code-aurora-security-bulletinCVE reference · x_refsource_CONFIRM
- https://source.codeaurora.org/quic/la/platform/vendor/qcom-opensource/wlan/qcacld-3.0/commit/?id=41ad3f76792e08a84962a0b8e9cfb1ba6c4c9ca6CVE reference · x_refsource_CONFIRM
- https://source.android.com/security/bulletin/pixel/2018-07-01CVE 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.